Tipón : water engineering masterpiece of the Inca empire

von Wright, Kenneth R.
Reston, Va. : American Society of Civil Engineers, 2006.
Umfang/Format: ix, 155, 8 p. of plates : ill. (some col.), maps, plans ; 28 cm.

Machu Picchu : a civil engineering marvel

von Wright, Kenneth R.
Reston, VA : American Society of Civil Engineers, 2000.
Umfang/Format: viii, 136 p. : ill., maps ; 28 cm.