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	1.	Image from Amazon.com	Nitrogen fixation by free-living micro-organisms / [edited by] W. D. P. Stewart. by Stewart, W. D. P. (William Duncan Patterson), 1935- International Biological Programme Series: International Biological Programme ; 6 \| International Biological Programme ; 6. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Cambridge, England ; New York : Cambridge University Press, c1975 Availability: Items available for loan: PSAU OLM (2)Call number: C 589 N63 1975, ... Place hold Save to lists Add to cart (remove)
	2.	Image from Amazon.com	Crop genetic resources for today and tomorrow / edited by O. H. Frankel and J. G. Hawkes. by Frankel, O. H. (Otto Herzberg), 1900-1998 Hawkes, J. G. (John Gregory), 1915-2007 Series: International Biological Programme ; 2 \| International Biological Programme ; 2 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Cambridge [Eng.] ; New York : Cambridge University Press, 1975 Availability: Items available for loan: PSAU OLM (2)Call number: C 581.15 C87 1975, ... Place hold Save to lists Add to cart (remove)
	3.	Image from Amazon.com	Symbiotic nitrogen fixation in plants / edited by P. S. Nutman. by Nutman, P. S Series: International Biological Programme ; 7 \| International Biological Programme ; 7. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Cambridge [Eng.] ; New York : Cambridge University Press, 1976 Availability: Items available for loan: PSAU OLM (1)Call number: C 631.84 Sy6 1976. Place hold Save to lists Add to cart (remove)