APA (7th ed.) Citation

Larsen, S. J. (1978). Close encounters: A factual report on UFOs. Raintree Publishers.

Chicago Style (17th ed.) Citation

Larsen, Sherman J. Close Encounters: A Factual Report on UFOs. Milwaukee: Raintree Publishers, 1978.

MLA (9th ed.) Citation

Larsen, Sherman J. Close Encounters: A Factual Report on UFOs. Raintree Publishers, 1978.