edited by John A. Agnew, James S. Duncan
Wiley-Blackwell, 2011
Buku Teks
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McGraw-Hill, 2012
Buku Teks
by Jerome D. Fellmann, Mark D. Bjelland, Arthur Getis, Judith Getis
McGraw-Hill, 2010
Buku Teks
Lebon, J. H. G., author
Hutchinson University Library, 1969
Buku Teks
Huntington, Ellsworth, author
John Wiley & Sons, 1951
Buku Teks