APA
Bernard Grzimek, .Grzimek´s Animal Life Encyclopedia Vol. 2, Insects. New York: Van Nostrand Reinhold Company.
Chicago
Bernard Grzimek, .Grzimek´s Animal Life Encyclopedia Vol. 2, Insects. New York: Van Nostrand Reinhold Company.
Harvard
Bernard Grzimek, .Grzimek´s Animal Life Encyclopedia Vol. 2, Insects. New York: Van Nostrand Reinhold Company.
MLA
Bernard Grzimek, .New York: Van Nostrand Reinhold Company. .
