APA (7th ed.) Citation

Long, R. E. (1989). Gun control. The reference shelf.

Chicago Style (17th ed.) Citation

Long, Robert Emmet. "Gun Control." The Reference Shelf 1989.

MLA (8th ed.) Citation

Long, Robert Emmet. "Gun Control." The Reference Shelf, 1989.

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