APA

Constable P., Hinchcliff K., Demma N., Callahan M., Dale B., Fox K., Adams L., Wack R. & Kramer L. (19991116). Serum biochemistry of captive and free-ranging gray wolves (Canis lupus). : Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians.

Chicago

Constable P, Hinchcliff K, Demma N, Callahan M, Dale B, Fox K, Adams L, Wack R and Kramer L. 19991116. Serum biochemistry of captive and free-ranging gray wolves (Canis lupus). : Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians.

Harvard

Constable P., Hinchcliff K., Demma N., Callahan M., Dale B., Fox K., Adams L., Wack R. and Kramer L. (19991116). Serum biochemistry of captive and free-ranging gray wolves (Canis lupus). : Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians.

MLA

Constable P, Hinchcliff K, Demma N, Callahan M, Dale B, Fox K, Adams L, Wack R and Kramer L. Serum biochemistry of captive and free-ranging gray wolves (Canis lupus). : Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians. 19991116.