APA
Parker T., . (1993). Unix user's handbook Unix user's handbook. Galgotia publications pvt ltd, New Delhi: .
Chicago
Parker Tim, . 1993. Unix user's handbook Unix user's handbook. Galgotia publications pvt ltd, New Delhi: .
Harvard
Parker T., . (1993). Unix user's handbook Unix user's handbook. Galgotia publications pvt ltd, New Delhi: .
MLA
Parker Tim, . Unix user's handbook Unix user's handbook. Galgotia publications pvt ltd, New Delhi: . 1993.