Cita APA (7th ed.)
Haag, V. (1968). Introduction to college mathematics. Holt.
Cita Chicago (17th ed.)
Haag, Vincent. Introduction to College Mathematics. London: Holt, 1968.
Cita MLA (9th ed.)
Haag, Vincent. Introduction to College Mathematics. Holt, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.