99 books • 17 series
Escalar y saltar (Climbing and Diving) (Spanish Version) (Science Readers: A Closer Look)
C mo funcionan los juguetes (How Toys Work) (Spanish Version) (Science Readers: A Closer Look)
C mo funcionan los parques de diversiones (How Amusement Parks Work) (Spanish Version) (Science Readers: A Closer Look)
La b squeda de lo mejor personal: Los deportes individuales (The Quest for Personal Best: Individual Sports) (Science Readers: A Closer Look)
La b squeda de la velocidad: Los veh culos (The Quest for Speed: Vehicles) (Spanish Version) (Science Readers: A Closer Look)