Cita APA (7th ed.)
Lang, S. (1964). A second course in calculus. Addison- Wesley.
Cita Chicago (17th ed.)
Lang, Serge. A Second Course in Calculus. Massachusetts: Addison- Wesley, 1964.
Cita MLA (9th ed.)
Lang, Serge. A Second Course in Calculus. Addison- Wesley, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.