Behavior Modification

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.

In 1833, American and Tejano colonists wanted independence from the Mexican government. Through a bloody Texas Revolution, the independent Republic of Texas was born! Readers will be enthralled as they make their way through this exciting and compelling book that has been translated into Spanish. This book uses vivid images, intriguing facts and sidebars in conjunction with easy-to-read text and an accessible glossary and index to enlighten readers about such things as the Law of April 6, 1830, the Battle of Gonzalez, the Siege of Bexar, "The Consultation", and The Alamo. Along with these...

Para jóvenes lectores que además ejercen de espías, detectives, conspiradores y aventureros, este libro presenta todo tipo de sistemas, de lenguajes y de ingenios para crear y ocultar mensajes secretos. Desde las órdenes cifradas de Julio César, hasta el extraño mensaje en clave que escribió el hombre de la máscara de hierro, el código que utilizó Sherlock Holmes o la fabricación de tinta invisible, con ejercicios prácticos y un diploma acreditativo.

Basic concepts about electricity. Topics include: CA circuits, Serial and parallel circuits, transformers, power distribution and circuit repairs. With questionnaire. Ideal for high-school and college.

A selection of children's poems by Rafael Alberti, Federico García Lorca, Ramón Gómez de la Serna, José A. Goytisolo, Nicolás Guillén, and others.