encyclopedias

This volume, covering entries A-E, examines the social and cultural history of childhood through articles on education, parenting, child labor, economics, children's literature, play, toys and games, health, physiology, law, the criminal justice system, and social welfare.

An encyclopedia of science and technology, covering such areas as the Earth, the ocean, plants and animals, medicine, agriculture, manufcturing, and transportation.

See the world of science through pictures and words. The illustrations in ths straightforard book are crisp, helpful, and plentiful.

Complete introduction to the world of science. Arranged thematically, its clear explanations link basic scientific principles with everyday life.

Helps those who suffer, their families, and mental health professionals.

Covering nearly 1000 years of history, from the late ancient period through the first centuries of the Middle Ages, this reference work examines key figures, places, events, laws, and ideas of barbarian Europe.