APA

Digital Equipment Corporation, . (1984). Professional handbook. [Concord, Mass.]: Digital Equipment.

Chicago

Digital Equipment Corporation, . 1984. Professional handbook. [Concord, Mass.]: Digital Equipment.

Harvard

Digital Equipment Corporation, . (1984). Professional handbook. [Concord, Mass.]: Digital Equipment.

MLA

Digital Equipment Corporation, . Professional handbook. [Concord, Mass.]: Digital Equipment. 1984.