APA aipamena

(1999). CIVIL ENGINEERING CONSTRUCTION CONTRACTS/O'Reilly Michael. s.n.

Chicago Style aipamena

CIVIL ENGINEERING CONSTRUCTION CONTRACTS/O'Reilly Michael. s.n, 1999.

MLA aipamena

CIVIL ENGINEERING CONSTRUCTION CONTRACTS/O'Reilly Michael. s.n, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.