(1)
Marquez-Berber, S. R.; Torcuato-Calderon, C.; Almaguer-Vargas, G.; Ayala-Garay, A. V.; Aguilar-Avila, J.; Gardezi, A. K. THE ENVIRONMENT-FRIENDLY SMALL FARMERS AT THE CENTRAL HIGHLANDS OF MEXICO. ESJ 2015, 11.