- On the Wings of Checkerspots: A Model System for Population Biology
- New World New Mind: Moving Toward Conscious Evolution by Robert E. Ornstein, Paul Ehrlich, 2000-09
- Reef Fishes of the Sea of Cortez: The Rocky-Shore Fishes of the Gulf of by Donald A. Thomson, Lloyd T. Findley, et all 2000-05-15
- German Essays on Science in the 19th Century: Paul Ehrlich, Alexander von Humboldt, Werner Von Sieme (German Library) by Wolfgang Schirmacher, 1996-09-01
- Birds in Jeopardy: The Imperiled and Extinct Birds of the United States and Canada by Paul Ehrlich, David Dobkin, et all 1992-03-01
- The Population Bomb by Paul R. Ehrlich, 1970-05-01
- Collected Studies On Immunity by Paul Ehrlich, 2010-01-11
- Gesammelte Arbeiten zur Immunitätsforschung (German Edition) by Paul Ehrlich, 2010-05-13
- The Machinery of Nature by Paul R. Ehrlich, 1987-02
- Healing the Planet: Strategies for Resolving the Environmental Crisis by Paul R. Ehrlich, Anne H. Ehrlich, 1992-09
- Extinction by Paul R. Ehrlich, 1983-03-12
- How To Know the Butterflies by Paul Ehrlich,
- Human Natures by Paul R. Ehrlich, 2000-08-01
- Extinction: The Causes and Consequences of the Disappearance of Species by Paul Ehrlich, Anne Ehrlich, 1989
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