Rowland, Howard S., author
An Aspen Publication, 1984
Buku Teks
Robinson, Geoffrey A.
Butterworth, 1966
Buku Teks
edited by Christopher G. Reddick, Jerrell D. Coggburn
CRC Press, 2008
Buku Referensi
McGraw-Hill, [date of publication not identified]
Buku Teks
Asa S. Knowles, editor-in-chief.
McGraw-Hill, 1970
Buku Referensi