Brumfiel, Charles Francis, 1914-
Addison-Wesley , 1963
Buku Teks
Whimbey, Arthur
McGraw-Hill, 1981
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Aldine-Atherton, 1971
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Harper & Row, 1965
Buku Teks
Brumfiel, Charles Francis, 1914-
California State Department of Education , 1965
Buku Teks