The Zoologist : a monthly journal of natural history (1898)

The Zoologist : a monthly journal of natural history (1910)

The Zoologist : a monthly journal of natural history (1911)

The Zoologist : a monthly journal of natural history (1913)

The Zoologist : a monthly journal of natural history (1915)

The zoologist's text-book, embracing the characters of the classes, orders, and genera, of almost the whole animal kingdom ... - Brown, Thomas, 1785 -1862 (A. Fullarton, & co.; [etc., etc.], 1833)

Zoology : an elementary text-book - MacBride, E. W. (Ernest William), 1866 -1940 (Univ. Press, 1920)

Die Zweiflügler des Kaiserlichen Museums zu Wien - Brauer, Friedrich, 1832 -1904 (K.K. Hof-und Staatsdruckerei, 1894)

Известия на Царските природонаучни институти в София = Izvestiia na Tsarskitia prirodonauchni instituti v Sofiia - Tsarskitie prirodonauchni instituti (Sofiia, Bulgaria) (Pechatnitsa P. Glushkov, 1928)

Известия на Царските природонаучни институти в София = Izvestiia na Tsarskitia prirodonauchni instituti v Sofiia - Tsarskitie prirodonauchni instituti (Sofiia, Bulgaria) (Pechatnitsa P. Glushkov, 1932)