edited by Joseph Seibert & Gorden [i.e. Gordon] Wills
Penguin Books, 1970
Buku Referensi
edited by E. Jerome McCarthy, John F. Grashof, Andrew A. Brogowicz
Richard D. Irwin, 1984
Buku Teks
Hansen, Harry L., author
Richard D. Irwin, 1964
Buku Teks
Hansen, Harry L., author
Richard D. Irwin, 1956
Buku Teks
Narver, John C., author
Holt, Rinehart and Winston, 1971
Buku Teks