National Academy Press, 1984
Buku Teks
Herrick, Glenn W. (Glenn Washington), 1870-1965, author
Comstock Publishing Company, 1935
Buku Teks
Burkhart, Harold E., author
[Springer, Springer], 2012
eBooks
Attenborough, David
BBC Worldwide Limited, 2004
Multimedia
Thomas, Peter A., 1957-, author
Cambridge University Press, 2014
Buku Teks