APA
Thomas R. &. Y., . (1982). A user guide to the unix system. McGrow-Hall, California: .
Chicago
Thomas Rebecca & Yates,Jean, . 1982. A user guide to the unix system. McGrow-Hall, California: .
Harvard
Thomas R. &. Y., . (1982). A user guide to the unix system. McGrow-Hall, California: .
MLA
Thomas Rebecca & Yates,Jean, . A user guide to the unix system. McGrow-Hall, California: . 1982.