APA aipamena

Parker, H. (1974). Simplified design of structural steel (4th ed.). Apson Enterprises.

Chicago Style aipamena

Parker, Harry. Simplified Design of Structural Steel. 4th ed. Quezon City: Apson Enterprises, 1974.

MLA aipamena

Parker, Harry. Simplified Design of Structural Steel. 4th ed. Apson Enterprises, 1974.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.