APA (7th ed.) Citation

(1990). Harrap's book of humorous quotations. Harrap books.

Chicago Style (17th ed.) Citation

Harrap's Book of Humorous Quotations. London: Harrap books, 1990.

MLA (9th ed.) Citation

Harrap's Book of Humorous Quotations. Harrap books, 1990.

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