Chávez, T., Lorenzo, M. D., & Ludlow, L. (2021). Business and Services in Mexico City, at the End of Nineteenth Century. Spatial Analysis and ReClassification: The Figueroa Doménech Trade Directory and the North American Industry Classification System Criteria. Universidad Nacional, Costa Rica.

Chávez, Tania, María Dolores Lorenzo, and Leonor Ludlow. Business and Services in Mexico City, At the End of Nineteenth Century. Spatial Analysis and ReClassification: The Figueroa Doménech Trade Directory and the North American Industry Classification System Criteria. Universidad Nacional, Costa Rica, 2021.

Chávez, Tania, María Dolores Lorenzo, and Leonor Ludlow. Business and Services in Mexico City, At the End of Nineteenth Century. Spatial Analysis and ReClassification: The Figueroa Doménech Trade Directory and the North American Industry Classification System Criteria. Universidad Nacional, Costa Rica, 2021.