Villee, C. A., Walker, W. F. J., & Barnes, R. D. (1979). Introduction to animal biology. W. B. Saunders.
Chicago-čujuhus (17. p.)Villee, Claude A., Warren F. Jr Walker, juo Robert D. Barnes. Introduction to Animal Biology. Philadelphia: W. B. Saunders, 1979.
MLA-čujuhus (9. p.)Villee, Claude A., et al. Introduction to Animal Biology. W. B. Saunders, 1979.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.