APA (7th ed.) Citation

McGowan, C. L., & Kelly, J. R. (1975). Top-down structured programming techniques. Petrocelli/Charter.

Chicago Style (17th ed.) Citation

McGowan, Clement L., and John R. Kelly. Top-down Structured Programming Techniques. New York: Petrocelli/Charter, 1975.

MLA (9th ed.) Citation

McGowan, Clement L., and John R. Kelly. Top-down Structured Programming Techniques. Petrocelli/Charter, 1975.