Beyond Cladistics: The Branching of a Paradigm by David M. Williams (Editor), Sandra Knapp (Editor) December 1969
Lizards: Windows to the Evolution of Diversity by Eric P. Pianka (Author), Laurie J. Vitt (Author) December 1969
Misogyny, Misandry, and Misanthropy by R. Howard Bloch (Editor), Frances Ferguson (Editor) December 1969