Thomas, Kenneth S., author
Springer, 2012
eBooks
edited by Robert W. Tucker, Charles B. Keely and Linda Wrigley
Westview Press, 1992
Buku Teks
Department of the Army Field Manual
Dorset Press, 2000
Buku Teks
by Deepa Narayan ... [et al.]
Oxford University Press, 2000
Buku Teks
Paust, Jordan J., author
St. Paul Minn, 2000
Buku Teks