APA (7th ed.) Citation

Schneider, H. J. (1984). Problem oriented programming languages. Wiley.

Chicago Style (17th ed.) Citation

Schneider, Hans Jürgen. Problem Oriented Programming Languages. Chichester [West Sussex] ; New York: Wiley, 1984.

MLA (9th ed.) Citation

Schneider, Hans Jürgen. Problem Oriented Programming Languages. Wiley, 1984.