Cita APA (7th ed.)

Christian, K. (1986). A Guide to Modula-2. Springer-Verlag.

Cita Chicago (17th ed.)

Christian, Kaare. A Guide to Modula-2. New York: Springer-Verlag, 1986.

Cita MLA (9th ed.)

Christian, Kaare. A Guide to Modula-2. Springer-Verlag, 1986.