APA (7th ed.) Citation

Grey House Publishing, Inc. (2022). UFOs. Grey House Publishing.

Chicago Style (17th ed.) Citation

Grey House Publishing, Inc. UFOs. Amenia, New York: Grey House Publishing, 2022.

MLA (9th ed.) Citation

Grey House Publishing, Inc. UFOs. Grey House Publishing, 2022.

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