APA (7th ed.) Citation

Keene. (1969). The invisible intruder. Grosset & Dunlap.

Chicago Style (17th ed.) Citation

Keene. The Invisible Intruder. New York: Grosset & Dunlap, 1969.

MLA (8th ed.) Citation

Keene. The Invisible Intruder. Grosset & Dunlap, 1969.

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