APA (7e ed.) Bronvermelding

Wells, R. A. (1998). Stretch: Explore, explain, persuade. Prentice Hall.

Chicago (17e ed.) Bronvermelding

Wells, Randall A. Stretch: Explore, Explain, Persuade. Upper Saddle River, N.J: Prentice Hall, 1998.

MLA (9e ed.) Bronvermelding

Wells, Randall A. Stretch: Explore, Explain, Persuade. Prentice Hall, 1998.