Williams, Andrew R. Spon's practical guide to alterations and extensions / Andrew R. Williams - 2nd ed. - New York, NY : Taylor & Francis, 2008 - [xiii], 250 p. : ill. ; 24 cm. Includes bibliographical references and index ISBN: 9780415434263 (pbk. : alk. paper) 0415434262 (pbk. : alk. paper) 9780203932049 (ebook) 0203932048 (ebook) Subjects--Topical Terms: Buildings--Additions