Chicago on foot : walking tours of Chicago´s architecture / Ira J. Bach & Susan Wolfson ; with a foreword by Wally Phillips. — [4th. ed.]. — Chicago : Review Press, cop.1987. — X,450 p. : il. ; 26 cm. — ISBN 0-914091-94-8 1. Arquitectura s.20 - Estados Unidos-Chicago - guías. 2. Chicago. I. Wolfson, Susan, col.. 72.036(773) 72(773)