APA (7th ed.) Citation

Geer, H. T. (1955). Charging systems. American Library Association.

Chicago Style (17th ed.) Citation

Geer, Helen Thornton. Charging Systems. Chicago: American Library Association, 1955.

MLA (9th ed.) Citation

Geer, Helen Thornton. Charging Systems. American Library Association, 1955.

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