APA-viite (7. p.)

HEARNDEN , K. (1987). HD BK OF COMPUTER SECURITY. KOGAN PAGE.

Chicago-viite (17. p.)

HEARNDEN , KEITH. HD BK OF COMPUTER SECURITY. LONDON: KOGAN PAGE, 1987.

MLA-viite (9. p.)

HEARNDEN , KEITH. HD BK OF COMPUTER SECURITY. KOGAN PAGE, 1987.