Cita APA (7th ed.)
Hoyle, F., & Wickramasinghe, C. (1980). Diseases from space. Harper & Row.
Cita Chicago (17th ed.)
Hoyle, Fred, i Chandra Wickramasinghe. Diseases from Space. New York: Harper & Row, 1980.
Cita MLA (9th ed.)
Hoyle, Fred, i Chandra Wickramasinghe. Diseases from Space. Harper & Row, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.