Khanna, p. n. Indian practical civil engineers' handbook : the standard every-day reference book for all engineers and architects - New Delhi : UBS Publishers' Distributer Pvt.Ltd 1986. - 22/18 p. : ill. ; 19cm. Includes index. ISBN: NA NA NA LC Class. No.: 24212-24214 Dewey Class. No.: 624.092 / KHA