edited by Howard Newby
John Wiley & Sons, 1978
Buku Teks
Basic Book, 1968
Buku Teks
edited by Earl Rubington and Martin S. Weinberg
Oxford University Press, 2011
Buku Teks
Hatch, Mary Jo.
Oxford University Press , 2013
Buku Teks
by Thomas J. Sullivan ... [and others]
John Wiley & Sons, 1980
Buku Teks