Manzer, Ronald A.
McGraw-Hill Ryerson, 1974
Buku Teks
chapters by Edgar McInnis ... [et al.] ; edited by George W. Brown
University of California Press, 1953
Buku Teks
Brady, Alexander
University of Toronto Press, 1948
Buku Teks
Smiley, Donald V.
McGraw-Hill Ryerson, 1980
Buku Teks
Manzer, Ronald A.
McGraw-Hill , 1974
Buku Teks