Foster, G. M. 1940. Notes on the Popoluca of Veracruz. Publicaciones del Instituto Panamericano de Geografia e Historia 51. 1-41. México, DF: Instituto Panamericano de Geografía e Historia.
@article{foster1940, author = {Foster, G. M.}, journal = {Publicaciones del Instituto Panamericano de Geografia e Historia}, key = {Foster (1940)}, pages = {1-41}, publisher = {México, DF: Instituto Panamericano de Geografía e Historia}, title = {Notes on the Popoluca of Veracruz}, volume = {51}, year = {1940} }