APA (7th ed.) Citation

Lea, P. W., & Day, W. A. (1990). Printed reference material and related sources of information (3nd ed.). The Library Association.

Chicago Style (17th ed.) Citation

Lea, Peter W., and William Alan Day. Printed Reference Material and Related Sources of Information. 3nd ed. London: The Library Association, 1990.

MLA (9th ed.) Citation

Lea, Peter W., and William Alan Day. Printed Reference Material and Related Sources of Information. 3nd ed. The Library Association, 1990.

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