La reforma tributaria colombiana de 1974 : Documento 696-CO, volumen III, Banco Internacional de Reconstrucción y Fomento, Asociación Internacional de Fomento / [Malcolm Gillis, Charles E. McLure, Jr.] ; traducido por Fereshtet Ebrahimzadet ; revisado por
The common market : friend or competitor? / Jesse W. Markham: The political economy of the eurpean economic community ; Charles E. Fiero: The american corporation in the Common Market ; Howard S. Piquet: The european common market in economic perspective