Volcanoes of the World by Lee Siebert (Author), Tom Simkin (Author), Paul Kimberly (Author) January 1970 eBook $85.00, £71.00
Wave-Swept Shore: The Rigors of Life on a Rocky Coast by Mimi A. R. Koehl (Author) January 1970 eBook $47.95, £40.00
Greater Sage-Grouse: Ecology and Conservation of a Landscape Species and Its Habitats by Steve Knick (Editor), John W. Connelly (Editor) January 1970 eBook $99.95, £84.00
Biodiversity Conservation in Costa Rica: Learning the Lessons in a Seasonal Dry Forest by Gordon W. Frankie (Editor), Alfonso Mata (Editor), S. Bradleigh Vinson (Editor) January 1970 eBook $36.95, £31.00
Beyond Cladistics: The Branching of a Paradigm by David M. Williams (Editor), Sandra Knapp (Editor) January 1970 eBook $68.95, £58.00