Ref ID:	34732
Ref Type:	Journal Article
Authors:	Delwiche, C. C. Zinke, Paul J. Johnson, C. M. Virginia, R. A.
Title:	Nitrogen isotope distribution as a presumptive indicator of nitrogen fixation
Date:	1979
Source:	Botanical Gazette
Date Created:	7/5/2001
Volume:	140
Page Start:	65
Page End:	69