Source: Jorge Carrillo, 1989, Bibliographic review of the book Elwyn R. Stoddard, Maquila assembly plants in northern Mexico. El Paso, Tx., The University of Texas at El Paso, 1987 in Frontera Norte, vol. 1, no. 1, Tijuana, El Colegio de la Frontera Norte, January-June, pp. 211-219.