Lang, S. (1968). A second course in calculus (2a. ed.). Addison-Wesley.
Cita Chicago (17th ed.)Lang, Serge. A Second Course in Calculus. 2a. ed. Reading: Addison-Wesley, 1968.
Cita MLA (9th ed.)Lang, Serge. A Second Course in Calculus. 2a. ed. Addison-Wesley, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.