Cita APA (7th ed.)

Berry, M. (1944). Principles of cosmology and gravitation. Adam Hilger.

Cita Chicago (17th ed.)

Berry, Michael. Principles of Cosmology and Gravitation. Bristol: Adam Hilger, 1944.

Cita MLA (9th ed.)

Berry, Michael. Principles of Cosmology and Gravitation. Adam Hilger, 1944.