Irangeles: Iranians in Los Angeles by Jonathan Friedlander (Editor), Anita Colby (Editor), Ron Kelley (Editor) December 1969
The Incomparable Valley: A Geologic Interpretation of the Yosemite by François E. Matthes (Author), Fritiof Fryxell (Editor) December 1969
Simple Curiosity: Letters from George Gaylord Simpson to His Family, 1921-1970 by George Gaylord Simpson (Author), Leo F. Laporte (Editor) December 1969
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