Cita APA

Hawking, S. (1994). Black holes and baby universes and other essays. New York: Bantam Books.

Citación estilo Chicago

Hawking, Stephen. Black Holes and Baby Universes and Other Essays. New York: Bantam Books, 1994.

Cita MLA

Hawking, Stephen. Black Holes and Baby Universes and Other Essays. New York: Bantam Books, 1994.

Precaución: Estas citas no son 100% exactas.