APA (7th ed.) Citation

Messer, P. A., & Marshall, I. (1986). Modula-2, constructive program development. Blackwell Scientific Publications.

Chicago Style (17th ed.) Citation

Messer, P. A., and I. Marshall. Modula-2, Constructive Program Development. Oxford [Oxfordshire] ; Boston: Blackwell Scientific Publications, 1986.

MLA (8th ed.) Citation

Messer, P. A., and I. Marshall. Modula-2, Constructive Program Development. Blackwell Scientific Publications, 1986.