Submarinos de La Armada de Ee.Uu./U.S. Navy Submarines

"Simple text and color photographs describe the units and tools used to measure time--in both English and Spanish"--

Este libro te enseña acerca de la depresión. Aprenderás cuáles son los síntomas, los tratamientos y cómo conseguir ayuda para una persona que padece este mal.

Discute aspectos alimenticios, médicos, y sociales del embarazo y la maternidad adolescentes. -- Discusses nutritional, medical, and social aspects of teenage pregnancy and teenage parenthood.

Answers such questions as "Qué son los perros?, Qué come mi perro?, Qué mas necesita mi perro?, Qué puedo hacer por mi perro?, Qué puede hacer mi perro?"

People today refer to the Midwestern and prairie states as flyover country. During the Civil War, crossing those areas was the biggest obstacle in uniting the East and West Coasts of our divided nation. An act of Congress in 1862 authorized the Central Pacific and the Union Pacific railroad companies to build a railroad that would link the coasts. Seven years later, on May 10, 1869, an overwhelmingly immigrant labor force completed the task when a rail line was join in Promontory, Utah. The states had become united at last.