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Mahlstede, John P

The symbiosis of plants and people / by John P. Mahlstede. - - Washington , D.C. : Agricultural research service , U.S. Dept. of Agricultural, 1975. - 13 p.

" The 1973 B.Y. Morrison memorial lectures. "

Subjects--Topical Terms:
Symbiosis - Addresses, eassays, lectures.

LC Class. No.: QH548 / M3