APA (7th ed.) Citation

Hoyle, F., & Hoyle, G. (1974). Into deepest space. Harper & Row.

Chicago Style (17th ed.) Citation

Hoyle, Fred, and G. Hoyle. Into Deepest Space. New York: Harper & Row, 1974.

MLA (9th ed.) Citation

Hoyle, Fred, and G. Hoyle. Into Deepest Space. Harper & Row, 1974.

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