APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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