Primack, Richard B. Essentials of conservation biology / by Richard B. Primack. - 2nd ed. - Sunderland, MA : Sinauer Associates, 1998. - xii, 660 p. : ill., maps ; 24 cm. ISBN: 0878937218 Subjects--Topical Terms: Conservation biology. Dewey Class. No.: 333.9511 PRI 'R' / 1195