Método de español para extranjeros

A foundered Victorian ship looking for the fabled Northwest Passage holds a secret in its icy grave... When Dirk Pitt of NUMAr is almost blown to pieces in a lab explosion, he suspects sabotage. The lab in question belongs to a scientist hoping to use a rare mineral to combat greenhouse gases - but who would want to destroy our one chance to save the planet? However, there are those who will do anything to control such a valuable prize. Pitt's investigations take him to the Arctic in search of a clue to the origins of this precious mineral. There he and NUMAr colleague Al Giordino must battle ...

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.

Conocer las cosas cuando se estan formando, quiere decir comprenderlas mejor. Los elementos de esta transformaicon pueden verse en gran parte en este libro que Bruno Munari ha compilado, basandose en cincuenta lecciones por el profesadas en la Universidad de Harvard.

A nonsensical and factual look at animals. Use of eye-catching illustrations and clear text answers children's most frequently asked questions about animals.