Willis, A.J,Willis, C. J [from old catalog] Specification writing.: for architects and surveyors, edited by Willis, A. J,Willis, C. J - 7th ed - London, Crosby. Lockwood Staples Granada Publishing, 1953. - xiii,98 p. 24cm ill, include index ISBN: 0258971428 Source: B-3556 LCCN: 54025726 Subjects--Topical Terms: Buildings--Specifications. LC Class. No.: NA7140 / .W54