Citazione Stile APA (7a Edizione)

Demana, F. D., & Waits, B. K. (1990). Trigonometry, a graphing approach. Addison-Wesley Pub. Co.

Citazione stile Chigago Style (17a edizione)

Demana, Franklin D., e Bert K. Waits. Trigonometry, a Graphing Approach. Reading, Mass: Addison-Wesley Pub. Co, 1990.

Citatione MLA (9a ed.)

Demana, Franklin D., e Bert K. Waits. Trigonometry, a Graphing Approach. Addison-Wesley Pub. Co, 1990.