Chadwick, Douglas. The kingdom : Wildlife in North America / photographs by Art Wolfe ; text by Douglas Chadwick. - San Francisco : Sierra Club Books, 1990. - 351 p. : ill. ; 29 cm. - Sierra Club books. . - 591(73) (NLA) . ISBN: 0871566176 Subjects--Topical Terms: Animals--North America. Universal Decimal Class. No.: 591(73) (NLA)