Cita APA (7th ed.)

Berry, M. (1989). Principles of cosmology and gravitation. IOP.

Cita Chicago (17th ed.)

Berry, Michael. Principles of Cosmology and Gravitation. Bristol: IOP, 1989.

Cita MLA (9th ed.)

Berry, Michael. Principles of Cosmology and Gravitation. IOP, 1989.