Gliessman, Stephen R. Field and laboratory investigations in agroecology / Stephen R. Gliessman ; edited by Eric Engles. - Boca Raton, Fla. : Lewis Publishers, c2000. - 330 p. : ill. ; 28 cm. Includes bibliographical references. ISBN: 1566704456 (alk. paper) Subjects--Topical Terms: Agricultural ecology--Fieldwork.Agricultural ecology--Laboratory manuals. Dewey Class. No.: 577.55078 / GLF 2000