Commercial agricultural and vegetable seeds, 1968 pesticides, 1968
Hutchinson, F.E., Rich, J.S., Foster, J.W.
Commercial agricultural and vegetable seeds, 1968 pesticides, 1968 - Orono 1968 - 1-50 p. - Vegetable, Seeds Canada Department of Agriculture Central Experimental Farm. Bullitin No. 289 .
Commercial agricultural and vegetable seeds, 1968 pesticides, 1968 - Orono 1968 - 1-50 p. - Vegetable, Seeds Canada Department of Agriculture Central Experimental Farm. Bullitin No. 289 .