xxxii, 616 p., [3] leaves of plates : ill., maps, ports. ; 21 cm
Notes
Maps on end papers
"Authorised by the Minister of Education for use in the high schools and collegiate institutes of Ontario, and by the Advisory Board for use in Manitoba"
"Report is the result of four years' consideration and debate by the Science Council's Committee on Canada's Scientific and Technological Contribution to World Food Supply."--Pref