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Incoming Resources
- The golden door, Paul R. Ehrlich, Anne H. Ehrlich and Loy Bilderback, International Migration, Mexico, and the United States
- New world new mind, Paul R. Ehrlich and Robert Ornstein
- The population explosion, Paul R. Ehrlich & Anne H. Ehrlich
- Humanity on a tightrope, thoughts on empathy, family, and big changes for a viable future, Paul R. Ehrlich and Robert E. Ornstein
- The dominant animal, human evolution and the environment, Paul R. Ehrlich and Anne H. Ehrlich