APA (7th ed.) Citation

(1977). Skylab: A chronology / Roland W. Newkirk and Ivan D. Ertel, with Courtney G. Brooks.

Chicago Style (17th ed.) Citation

Skylab: A Chronology / Roland W. Newkirk and Ivan D. Ertel, with Courtney G. Brooks. 1977.

MLA (9th ed.) Citation

Skylab: A Chronology / Roland W. Newkirk and Ivan D. Ertel, with Courtney G. Brooks. 1977.

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