Submarinos de La Armada de Ee.Uu./U.S. Navy Submarines
Provides an overview of the design, uses, weapons, and equipment of U.S. Navy submarines. Written in English and Spanish.
Libros de Thomas K. Adamson (2 libros)
How Do You Measure Time?
"Simple text and color photographs describe the units and tools used to measure time--in both English and Spanish"--