APA (7th ed.) Citation

Digital Equipment Corporation. (1962). Digital modules. [publisher not identified].

Chicago Style (17th ed.) Citation

Digital Equipment Corporation. Digital Modules. Maynard, Mass.: [publisher not identified], 1962.

MLA (9th ed.) Citation

Digital Equipment Corporation. Digital Modules. [publisher not identified], 1962.

Warning: These citations may not always be 100% accurate.