na INLIS000000000002504 Ind 0010-1118002504 Keeping options alive the scientific basis for conserving biodiversity REID, Walter V. Walter, V. Reid; Kenton, R. Miller [New York] World Resources Institute 1989 vii, 128 p. : ill. ; 25 cm. vii, 128 p. : ill. ; 25 cm. 0-915825-41 339.5:574REIk Bibl. p. 111-128 339.5 RESOURCES CONSERVATION BIOLOGY 0157/90