APA (7th ed.) Citation

Walker, L. (1998). Telephone techniques: The essential guide to thinking and working smarter. Marshall Pub.

Chicago Style (17th ed.) Citation

Walker, Lin. Telephone Techniques: The Essential Guide to Thinking and Working Smarter. London: Marshall Pub, 1998.

MLA (9th ed.) Citation

Walker, Lin. Telephone Techniques: The Essential Guide to Thinking and Working Smarter. Marshall Pub, 1998.