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Publications from the 1960s.
Publications des années 60.
Manipulation of sperm to improve fertility
Human health and agroecosystems : making the links
Philippine agricultural bibliography, 1963-1974
Letter to M.F. Strong from C.H.G. Oldham, July 11, 1968, and a brief on science policy studies and the Canadian Centre for International Development
Reply to L.B. Pearson from S.S. Peters, Special Adviser, CIDA, July 11, 1969