APA (7th ed.) Citation

Van der Meer, D. (1979). Put power in you serve. World Tennis, 27(2), 72.

Chicago Style (17th ed.) Citation

Van der Meer, D. "Put Power in You Serve." World Tennis 27, no. 2 (1979): 72.

MLA (9th ed.) Citation

Van der Meer, D. "Put Power in You Serve." World Tennis, vol. 27, no. 2, 1979, p. 72.