Cita APA (7a ed.)

Hawking, S. (1994). Black Holes And Baby Universes And Other Essays. Bantam Books.

Cita Chicago Style (17a ed.)

Hawking, Stephen. Black Holes And Baby Universes And Other Essays. London: Bantam Books, 1994.

Cita MLA (9a ed.)

Hawking, Stephen. Black Holes And Baby Universes And Other Essays. Bantam Books, 1994.