Cita APA (7a ed.)

Arem, J. E. (1994). Discover science & nature. Publications International.

Cita Chicago Style (17a ed.)

Arem, Joel E. Discover Science & Nature. Lincolnwood, Ill: Publications International, 1994.

Cita MLA (9a ed.)

Arem, Joel E. Discover Science & Nature. Publications International, 1994.