Methods for evaluating biological nitrogen fixation / edited by F . J. Bergersen. - Chichester [Eng.] ; New York : New York : New York : New York : J. Wiley, c1980. - x, 702 p. : ill. ; 24 cm. "A Wiley-Interscience publication." Includes indexes. Bibliography: p. 637-680. ISBN: 0471277592 : ยน35.00 LCCN: 79-041785 Subjects--Topical Terms: Nitrogen --Fixation.------Nitrogen-fixing microorganisms.--Fixation.------ Dewey Class. No.: 589