APA (7th ed.) Citation

Hathaway, N. (1994). The friendly guide to the universe. Penguin Books.

Chicago Style (17th ed.) Citation

Hathaway, Nancy. The Friendly Guide to the Universe. New York: Penguin Books, 1994.

MLA (9th ed.) Citation

Hathaway, Nancy. The Friendly Guide to the Universe. Penguin Books, 1994.

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