Ciencia ambiental/ Environmental Science: Un estudio de interrelaciones/ a Study of Interrelationships by Eldon D. Enger (9701056167 9789701056165 970-10-5616-7)
Aprendizaje con poder/ Power Learning: Estrategias para el exito en la universidad y en la vida/ Strategies for Success in College and Life by Robert S. Feldman (9701056175 9789701056172 970-10-5617-5)
Soluciones de Bases de Datos con Access/ Solutions Based on the Data with Access by John L. Viescas (9701058437 9789701058435 970-10-5843-7)
