Petroski, Henry. The evolution of useful things / by Henry Petroski. - 1st ed. - New York : A. Knopf, 1992. - xi, 288 p. : ill. ; 25 cm. Includes bibliographical references and index. ISBN: 0679412263 Subjects--Topical Terms: Inventions.Patents. LC Class. No.: T212 / .P465 1992 Dewey Class. No.: 609