APA
Townsend C., . (1984). Using dBase II. McGraw - Hill, Berkeley: .
Chicago
Townsend Carl, . 1984. Using dBase II. McGraw - Hill, Berkeley: .
Harvard
Townsend C., . (1984). Using dBase II. McGraw - Hill, Berkeley: .
MLA
Townsend Carl, . Using dBase II. McGraw - Hill, Berkeley: . 1984.