APA (7th ed.) Citation

Reader's Digest Association & Shephard, S. (2004). The Amazing secrets of nature (1st English language ed.). Reader's Digest.

Chicago Style (17th ed.) Citation

Reader's Digest Association and Sandy Shephard. The Amazing Secrets of Nature. 1st English language ed. New York: Reader's Digest, 2004.

MLA (9th ed.) Citation

Reader's Digest Association and Sandy Shephard. The Amazing Secrets of Nature. 1st English language ed. Reader's Digest, 2004.