approval statement
Student reference; status: other; General Science; level: Gr. 7, 8, 9; approved: 1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949. Student reference; status: other; General Science; level: Gr. 7; approved: 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958. Textbook; status: other; Science; level: Gr. 7, 8; approved: 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972. Accompanied by Teacher's edition. Other publishers include Gage & Co (1946). 1951 source specifies 1951 edition.
associated names
Mayfield, John Cunliffe; West, Joe Young, 1904-
