Unikel Spector, L. (1971). John Ball. Migration and the rural municipio in México. Atlanta, Georgia: Bureau of Business and Economic Research : Georgia State University, 1971. 44 p. El Colegio de México A.C.
Cita Chicago Style (17a ed.)Unikel Spector, Luis. John Ball. Migration and the Rural Municipio in México. Atlanta, Georgia: Bureau of Business and Economic Research : Georgia State University, 1971. 44 P. El Colegio de México A.C, 1971.
Cita MLA (9a ed.)Unikel Spector, Luis. John Ball. Migration and the Rural Municipio in México. Atlanta, Georgia: Bureau of Business and Economic Research : Georgia State University, 1971. 44 P. El Colegio de México A.C, 1971.
警告：這些引文格式不一定是100％准確.