Paleontological Research Institution – författare

Bulletins of American Paleontology; no.327 (1987)

Bulletins of American Paleontology.; v.8 1919-1921

Bulletins of American Paleontology; v.8, no. 33-34 (1919-1920)

Bulletins of American Paleontology; v.17, no. 62-63 (1930-1931)

Bulletins of American Paleontology Volume v. 109-111 1996

V. 109-111 1996