APA citiranje

Hawking, S. (1993). Black holes and baby universes and other essays. Bantam Books.

Chicago Edition Citation

Hawking, Stephen. Black Holes and Baby Universes and Other Essays. New York, N.Y.: Bantam Books, 1993.

MLA citiranje

Hawking, Stephen. Black Holes and Baby Universes and Other Essays. Bantam Books, 1993.