APA (7th ed.) Citation

Yourdon, E. (1979). Learning to program in structured COBOL: Parts 1 and 2. Prentice-Hall.

Chicago Style (17th ed.) Citation

Yourdon, Edward. Learning to Program in Structured COBOL: Parts 1 and 2. Englewood Cliffs, N.J.: Prentice-Hall, 1979.

MLA (9th ed.) Citation

Yourdon, Edward. Learning to Program in Structured COBOL: Parts 1 and 2. Prentice-Hall, 1979.