The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1889)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1890)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1891)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1892)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1893)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1896)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1897)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1898)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1899)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1900)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1901)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1902)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1905)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1906)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1908)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1910)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1917)

The American naturalist - American Society of Naturalists. (Published for the American Society of Naturalists by the University of Chicago Press [etc.], 1920)

The amphibia of the Indo-Australian archipelago - Kampen, Pieter Nicolaas van, 1878 -1937 (E. J. Brill, ltd, 1923)

Amphibian & reptile conservation (Amphibian & Reptile Conservation, 2000)

Amphibian & reptile conservation (Amphibian & Reptile Conservation, 2006)

Amphibian & reptile conservation (Amphibian & Reptile Conservation, 2011)

Amphibian & reptile conservation (Amphibian & Reptile Conservation, 2012)

Amphibian & reptile conservation (Amphibian & Reptile Conservation, 2013)

Amphibian & reptile conservation (Amphibian & Reptile Conservation, 2014)

Amphibian & reptile conservation (Amphibian & Reptile Conservation, 2015)

Amphibian & reptile conservation (Amphibian & Reptile Conservation, 2016)

Amphibian & reptile conservation (Amphibian & Reptile Conservation, 2017)

Amphibian & reptile conservation (Amphibian & Reptile Conservation, 2018)