APA (7th ed.) Citation

Ramsay & Ransford. (1999). 501 horrible but true things you'd rather not know! Bookmart.

Chicago Style (17th ed.) Citation

Ramsay and Ransford. 501 Horrible but True Things You'd Rather Not Know! Leicester: Bookmart, 1999.

MLA (8th ed.) Citation

Ramsay and Ransford. 501 Horrible but True Things You'd Rather Not Know! Bookmart, 1999.

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