Breve historia de México.

José Vasconcelos

La Novela Semanal.

Anuario Universal Y Anuario Mexicano.

Informes del Director General, Antonio J. Bermúdez, 1947-1952.

Petróleos Mexicanos.

Registry of Eclipses of the Sun Found Two Monuments of Ancient Mexico

Raúl Noriega

Notes on the Popoluca of Veracruz George M. Foster, Jr. ....

George Foster

Effigy Head Vessel Supports from Zacualpa, Guatemala

Robert Wauchope

BANCOMEXT Trade Directory of Mexico

Banco Nacional de Comercio Exterior (Mexico)

Cuadernos americanos

Jesús Silva Herzog

Boletín de estudios oaxaqueños

Mexico City College Centro de Estudios Regionales, Museo Frissell, Jay I. Kislak Reference Collection (Library of Congress)