APA aipamena

(1998). Report card for America's infrastructure. American Society of Civil Engineers. https://doi.org/10.1061/9780784478899

Chicago Style aipamena

Report Card for America's Infrastructure. Reston, Virginia: American Society of Civil Engineers, 1998. https://doi.org/10.1061/9780784478899.

MLA aipamena

Report Card for America's Infrastructure. American Society of Civil Engineers, 1998. https://doi.org/10.1061/9780784478899.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.