Tomlan, Michael A.
Springer International Publishing, 2015
eBooks
Spear, Percival
The University of Michigan Press, 1961
Buku Teks
Brown, Joe David
Time Incorporated, 1961
Buku Teks SO
edited by Dora Wiebenson and Jozsef Sisa ; contributions by Pal Lovei [and others]
MIT Press, 1998
Buku Teks
Ogilvy, David
Airlife Publications, 1994
Buku Teks