APA (7th ed.) Citation

Johnson, W. G. (2011). The Evolution of the Reference Librarian.

Chicago Style (17th ed.) Citation

Johnson, Wendell G. The Evolution of the Reference Librarian. 2011.

MLA (9th ed.) Citation

Johnson, Wendell G. The Evolution of the Reference Librarian. 2011.

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