APA aipamena

Williams, A. (2011). Steel tructures design. New York: McGraw-Hill.

Chicago Style aipamena

Williams, Alan. Steel Tructures Design. New York: McGraw-Hill, 2011.

MLA aipamena

Williams, Alan. Steel Tructures Design. New York: McGraw-Hill, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.