Fundamentals of tropical biology course. (Organization for Tropical Studies, 1975)
Descripción basada en: 75-5, January-Febrruary 1975–La Biblioteca contiene: 75-5, January-Febrruary 1975–66-3, Winter course 66-3 March 1966–Summer course OTS 65-3 (July-August 1965)–Summer course, OTS 66-5, 66-6 (July-Augut 1966)