Robert M. Sullivan
A dissertation on the sclerocele of the prostate gland
Natural History Notes of the State Museum of Pennsylvania
Natural History Notes of the State Museum of Pennsylvania, August 1999
A dissertation on the sclerocele of the prostate gland
Reassessment of Reptilian Diversity Across the Cretaceous-Tertiary Boundary (Contributions in Science, No 391)
Revision of the paleogene genus Glyptosaurus (Reptilia, Anguidae)