APA (7th ed.) Citation

Hoyle, F., & Hoyle, G. (1973). Seven steps to the sun. Fawcett Publications.

Chicago Style (17th ed.) Citation

Hoyle, Fred, and G. Hoyle. Seven Steps to the Sun. Greenwich, CT: Fawcett Publications, 1973.

MLA (9th ed.) Citation

Hoyle, Fred, and G. Hoyle. Seven Steps to the Sun. Fawcett Publications, 1973.

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