APA (7th ed.) Citation

Ridpath, I. (1975). Worlds beyond: A report on the search for life in space. Wildwood House.

Chicago Style (17th ed.) Citation

Ridpath, Ian. Worlds Beyond: A Report on the Search for Life in Space. London: Wildwood House, 1975.

MLA (9th ed.) Citation

Ridpath, Ian. Worlds Beyond: A Report on the Search for Life in Space. Wildwood House, 1975.

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