Census of India, 1991 Economic tables. Punjab. V. 20 & V.3, Pt. IIIB-B series, Tables B-21 (f) Pt. A&B, B-22 (f), B-23 (f) & B-24 (f) Census of India, 1991 - Punjab Govt. Press 1991 - vii, 801p cm. Source: General Book Dewey Class. No.: Y:5.243sN91, P1.20