Cita APA (7th ed.)
Kaplan, S. H. (1957). Regents exams and answers: Trigonometry (1a. ed.). Barron's educational series INC.
Cita Chicago (17th ed.)
Kaplan, Stanley H. Regents Exams and Answers: Trigonometry. 1a. ed. New York: Barron's educational series INC, 1957.
Cita MLA (9th ed.)
Kaplan, Stanley H. Regents Exams and Answers: Trigonometry. 1a. ed. Barron's educational series INC, 1957.
Atenció: Aquestes cites poden no estar 100% correctes.