APA (7th ed.) Citation

Ashlock, R. B. (1976). Error patterns in computation: A semi-programmed approach (2d ed.). Merrill.

Chicago Style (17th ed.) Citation

Ashlock, Robert B. Error Patterns in Computation: A Semi-programmed Approach. 2d ed. Columbus, OH: Merrill, 1976.

MLA (9th ed.) Citation

Ashlock, Robert B. Error Patterns in Computation: A Semi-programmed Approach. 2d ed. Merrill, 1976.