TY - BOOK AU - Vasishtha, A.R. AU - Rastogi, Sugam TI - Differential calculus as per U.P. unified syllabus w.e.f. 2011-2012 T2 - Made easy SN - 9788182831629 U1 - 515.33 PY - 2011/// CY - Meerut PB - Krishna Prakashan ER -