Krebs, J.R., author
Blackwell Science, 1993
Buku Teks
Krebs, J.R., author
Blackwell Scientific , 1988
Buku Teks
edited by J.R. Krebs and N.B. Davies
Blackwell, 1995
Buku Teks
edited by Bernard Stonehouse and Christopher M. Perrins
University Park Press, 1979
Buku Teks
Ridley, Mark, author
Blackwell, 1995
Buku Teks