APA (7th ed.) Citation

Ludington, F. B. (1958). Books and libraries: Tools of the academic world. American Library Association.

Chicago Style (17th ed.) Citation

Ludington, Flora Belle. Books and Libraries: Tools of the Academic World. Chicago: American Library Association, 1958.

MLA (9th ed.) Citation

Ludington, Flora Belle. Books and Libraries: Tools of the Academic World. American Library Association, 1958.