Cita APA (7th ed.)

Peters, M., & Schaaf, W. L. (1967). Algebra and trigonometry: A modern approach, books 2. Alemar-Phoenix Pub. House.

Cita Chicago (17th ed.)

Peters, Max, i William Leonard Schaaf. Algebra and Trigonometry: A Modern Approach, Books 2. Quezon City: Alemar-Phoenix Pub. House, 1967.

Cita MLA (9th ed.)

Peters, Max, i William Leonard Schaaf. Algebra and Trigonometry: A Modern Approach, Books 2. Alemar-Phoenix Pub. House, 1967.