Abhandlungen zur geologischen Specialkarte von Preussen und den Thüringischen Staaten - Preussische Geologische Landesanstalt. (Neumann'schen Kartenhandlung, 1885)

Abstammungslehre, Systematik, Paläontologie, Biogeographie - Wettstein, Richard, Ritter von Westersheim, 1863 -1931 (B. G. Teubner, 1914)

Acadian geology : the geological structure, organic remains, and mineral resources of Nova Scotia, New Brunswick, and Prince Edward Island - Dawson, J. W., (John William), 1820 -1899 (Macmillan, 1878)

Acadian geology the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island - Dawson, J. W., (John William), 1820 -1899 (MacMillan, 1868)

Actes de la Société linnéenne de Bordeaux - Société Linnéenne de Bordeaux. (The Society, 1832)