Approval: 1941; 1945-1967
Published
https://search.library.ualberta.ca/catalog/1456677
Textbook; status: other; Enterprise; level: Gr. 1, 2, 3; approved; 1941, 1945, 1946, 1947. Textbook; status: basic; Enterprise; level: Gr. 3, 4; approved: 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967. New edition published in 1950.
G 126 A88; G 126 A88 1950