Enideg Nigussie, Ethiopia, author
[, Springer Science+Business Media], 2012
eBooks
McGraw-Hill , 1984
Buku Teks
Bradbury, Phil, author
Colo Libraries Unlimited , 1989
Buku Teks
edited by Jose L. Ayala
CRC Press, 2011
Buku Teks
edited by Stephen Cohen, Richard C. Burns ; with 45 contributors ; principal illustrator, Richard C. Burns
Mosby, 1994
Buku Teks