Cita APA (7a ed.)

Chatelain, M., Berlings, O., & Chatelain, T. (1980). Our ancestors came from outer space. Pan Books.

Cita Chicago Style (17a ed.)

Chatelain, Maurice, Orest Berlings, y Thierry Chatelain. Our Ancestors Came from Outer Space. London ; Sidney: Pan Books, 1980.

Cita MLA (9a ed.)

Chatelain, Maurice, et al. Our Ancestors Came from Outer Space. Pan Books, 1980.