Guilford, Joy Paul, 1897-1987, author
McGraw-Hill Book Company,Inc., 1956
Buku Teks
Guilford, J. P. (Joy Paul), 1897-1987, author
McGraw-Hill , 1978
Buku Teks
Guilford, J. P. (Joy Paul), 1897-1987, author
McGraw-Hill, 1987
Buku Teks
Bogardus, Emory S.
Appleton-Century-Crofts , 1942
Buku Teks
Howell, David C., author
Cengage Learning, 2017
Buku Teks