TY - BOOK AU - Agor, R. TI - A Textbook of Surveying and Levelling SN - 9788174092359(Paperback) U1 - 526.9AGO PY - 1997/// CY - India PB - Khanna Publishers KW - Surveying KW - Leveling UR - http://10.10.170.122:8080/browse/book/27498 ER -