El optimismo es una cualidad y la Optitud es una actitud, una determinaci?n proactiva.La Optitud es una catapulta, la herramienta que permite materializar nuestros sue?os y concretar nuestras... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.