Gaya APA

Uvarov, E., Isaacs, A. (1986). The Penguin dictionary of science (6th ed). Harmondsworth, Middlesex: Penguin.

Gaya MLA

Uvarov, E.B.., Isaacs, Alan. "The Penguin dictionary of science". 6th ed Harmondsworth, Middlesex: Penguin, 1986. Text.