APA (7th ed.) Citation

Morris, R. S. (1968). Quantified maintainability requirements. [publisher not identified].

Chicago Style (17th ed.) Citation

Morris, Ronald Scott. Quantified Maintainability Requirements. [College Station, Tex.]: [publisher not identified], 1968.

MLA (9th ed.) Citation

Morris, Ronald Scott. Quantified Maintainability Requirements. [publisher not identified], 1968.