G. Arthur Cooper and Richard E. Grant
Smithsonian Institution Press
1972-
Smithsonian contributions to paleobiology
no. 14-15, 19, 21, 24, 32
1 , 2 , 3, pt. 1 : Text , 3, pt. 2 : Plates , 4, pt. 1 : Text , 4, pt. 2 : Plates , 5 , 6
Available at 6 libraries