HEHNER C R. (1991). THE LOGIC OF PROGRAMMING. PRENTICE - HALL.
Chicago Style aipamenaHEHNER C R. THE LOGIC OF PROGRAMMING. PRENTICE - HALL, 1991.
MLA aipamenaHEHNER C R. THE LOGIC OF PROGRAMMING. PRENTICE - HALL, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.