APA
Freeman P., . (1982). Insects. New York: Grosset & Dunlap.
Chicago
Freeman Paul, . 1982. Insects. New York: Grosset & Dunlap.
Harvard
Freeman P., . (1982). Insects. New York: Grosset & Dunlap.
MLA
Freeman Paul, . Insects. New York: Grosset & Dunlap. 1982.
