APA (7th ed.) Citation

Wright, K. R., & Valencia Zegarra, A. (2000). Machu Picchu : a civil engineering marvel / by Kenneth R. Wright ... [et al.]: A civil engineering marvel. American Society of Civil Engineers.

Chicago Style (17th ed.) Citation

Wright, Kenneth R., and Alfredo Valencia Zegarra. Machu Picchu : A Civil Engineering Marvel / by Kenneth R. Wright ... [et Al.]: A Civil Engineering Marvel. Reston, Va.: American Society of Civil Engineers, 2000.

MLA (9th ed.) Citation

Wright, Kenneth R., and Alfredo Valencia Zegarra. Machu Picchu : A Civil Engineering Marvel / by Kenneth R. Wright ... [et Al.]: A Civil Engineering Marvel. American Society of Civil Engineers, 2000.

Warning: These citations may not always be 100% accurate.