Jeffers, J. N. R. An introduction to systems analysis, with ecological applications / - Baltimore : University Park Press, [1978] - x, 198 p. : ill. ; 22 cm - A series of student texts in contemporary biology . Includes index ISBN: 0839113056 Subjects--Topical Terms: EcologySystem analysis Dewey Class. No.: 574 UNI 1978 A059 Or.