APA Edition Citation

Boslough, J. (1989). Stephen Hawking's universe. Avon Books.

Chicago Edition Citation

Boslough, John. Stephen Hawking's Universe. Canada: Avon Books, 1989.

MLA Edition Citation

Boslough, John. Stephen Hawking's Universe. Avon Books, 1989.

Warning: These citations may not always be 100% accurate.