APA (7th ed.) Citation

Reader's Digest Association. (1993). Discovering the wonders of our world. Reader's Digest.

Chicago Style (17th ed.) Citation

Reader's Digest Association. Discovering the Wonders of Our World. London: Reader's Digest, 1993.

MLA (8th ed.) Citation

Reader's Digest Association. Discovering the Wonders of Our World. Reader's Digest, 1993.

Warning: These citations may not always be 100% accurate.