Publisher: Heinle & Heinle Publishers Spanish Description : Un libro moderno, que expone datos claros, cientificos, objetivos, para que el lector norme su propio criterio, fortalezca su dignidad y tome decisiones practicas.
English Description : A modern book, which sets out clear data, scientific, objective, for the reader to guide his own discretion, to strengthen their dignity and make practical decisions./p>
