Hale, J. R. 1923- Age of exploration / by John R. Hale and the editors of Time-Life books. - New York : Time, c1966. - 192 p. : ill. (part fold. col.) maps (part fold. col.) col. ports. 28 cm. - Great ages of man : a history of the world's cultures . Subjects--Topical Terms: Discoveries in geography.Explorers.