The new anthropogeny: twenty-five stages of vertebrate evolution, from Silurian Chordate to man.- Washington, D.C.

von Gregory, William K.
Veröffentlicht in Science; 77. 1933, No. 1985, S. 29-40.
1933.

How near is the relationship of man to the chimpanzee-gorilla stock. - Baltimore, MD.

von Gregory, William K.
Veröffentlicht in Thequarterly review of biology ; 2. 1927, S. 549-560 : 10 Ill.
1927.

Cope's contributions to ichtyology. - Princeton, NY.

von Gregory, William K.
Veröffentlicht in Cope : Master naturalist ; o.Pag. / by Henry Fairfield Osborn.
1931.

A review of William Diller Mathew's contributions to mammalian palaeontology.- New York, N.Y.

von Gregory, William K.
Veröffentlicht in American museum novitates; 473. 1931, S. 1-23.
1931.

Certain critical stages in the evolution of the vertebrate jaws. - St. Louis, MO.

von Gregory, William K.
Veröffentlicht in The international journal of orthodontia, oral surgery and radiography ; 17.1931, no. 12, S. 1-12 : 6 Ill.
1931.