Gaya APA

Shuker, K, P, N. et al (2001). The Hidden powers of animals uncovering the secrets of nature . Australia r Newzealand: Universal International Pty ltd.

Gaya MLA

Shuker, Karl, P., N.. et al. "The Hidden powers of animals uncovering the secrets of nature". Australia r Newzealand: Universal International Pty ltd, 2001. Text.