Gaya APA

Packard, A, S. (1989). A text-book of entomology, including the anatomy, physiology, embryology and metamorphoses of insect, for use in agricultural and technical schools and colleges as well as by the working entomologist . London: blibiolife.

Gaya MLA

Packard, A, S. "A text-book of entomology, including the anatomy, physiology, embryology and metamorphoses of insect, for use in agricultural and technical schools and colleges as well as by the working entomologist". London: blibiolife, 1989. Text.