The ancient Incas : chronicles from National geographic

von Bingham, Hiram, 1875-1956
Cultural and geographical exploration
Philadelphia : Chelsea House Publishers, 1999.
Umfang/Format: x, 133 p. : ill., map ; 25 cm.

Framing a lost city : science, photography, and the making of Machu Picchu

von Hall, Amy Cox
Austin : University of Texas Press, 2017.
Umfang/Format: xiv, 267 pages : illustrations ; 24 cm.