Yale, William
The University of Michigan Press, 1958
Buku Teks
Peffer, Nathaniel
University of Michigan Press, 1958
Buku Teks
Vinacke, Harold M.
Appleton-Century-Crofts, 1950
Buku Teks
Vinache, Harold M.
George Allen and Unwin, 1950
Buku Teks
Vinacke, Harold M.
George Allen and Unwin, 1950
Buku Teks