Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Wright, K. R., Valencia Zegarra, A., Wright, R. M., & McEwan, G. F. (2000). Machu Picchu: A civil engineering marvel. American Society of Civil Engineers.

Chicago Citation Edition Citation

Wright, Kenneth R., Alfredo Valencia Zegarra, Ruth M. Wright, und Gordon Francis McEwan. Machu Picchu: A Civil Engineering Marvel. Reston, VA: American Society of Civil Engineers, 2000.

MLA Citation Edition Citation

Wright, Kenneth R., et al. Machu Picchu: A Civil Engineering Marvel. American Society of Civil Engineers, 2000.