APA Edition Citation

Elder, J., & Welsh, J. (1987). Introduction to Modula-2.

Chicago Edition Citation

Elder, John, and Jim Welsh. Introduction to Modula-2. New York, Prentice Hall, 1987.

MLA Edition Citation

Elder, John, and Jim Welsh. Introduction to Modula-2. 1987.

Warning: These citations may not always be 100% accurate.