00439cam a2200157ua 4500 24093 180830n1991 II |||gr||||Z||||||eng 532.2 KHANNA, M.L. , AUTHOR., HYDRO- STATICS Textual Documents REP ED. MEERUT JAI PRAKASH NATH & CO. 1991 21+ PB. Asomiya Sahitya 27341 27341