found: His How to know the butterflies, 1961.
found: Conf. on the Long-Term Worldwide Biol. Conseq. of Nuclear War (1983 : Wash., D.C.). The cold and the dark, c1984:CIP t.p. (Paul Ehrlich) pref. (prof. of biol. sci. & Bing prof. of pop. studies, Stanford Univ.)
found: Cassandra Conf. (1985 : Tex. A & M Univ.). The Cassandra Conference, c1987:CIP t.p. (Paul R. Ehrlich) pub. info. (b. Philadelphia, Pa., 5/29/32; Ph. D. in entomology, Univ. of Kansas, 1957)
found: Jaws, 2018:ECIP title page (Paul R. Ehrlich)
found: Stanford University Press WWW site, viewed December 6, 2018(Paul R. Ehrlich; is Bing Professor of Population Studies Emeritus and President of the Center for Conservation Biology at Stanford University)