APA aipamena

BIRCHALL DAVID. (2002). FUTURE PROOFING. CAPSTONE.

Chicago Style aipamena

BIRCHALL DAVID. FUTURE PROOFING. U K: CAPSTONE, 2002.

MLA aipamena

BIRCHALL DAVID. FUTURE PROOFING. CAPSTONE, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.