Ruppert, K. (1935). The caracol at chichen itza, Yucatan Mexico. Carnegie Institution.
Chicago Style (17th ed.) CitationRuppert, Karl. The Caracol at Chichen Itza, Yucatan Mexico. Washington: Carnegie Institution, 1935.
MLA (9th ed.) CitationRuppert, Karl. The Caracol at Chichen Itza, Yucatan Mexico. Carnegie Institution, 1935.