7172-1984, . (1985). METHOD FOR VERIFICATION OF SCLEROSCOPE HARDNESS TESTING MACHINES. DELHI: ISI.
7172-1984, . 1985. METHOD FOR VERIFICATION OF SCLEROSCOPE HARDNESS TESTING MACHINES. DELHI: ISI.
7172-1984, . METHOD FOR VERIFICATION OF SCLEROSCOPE HARDNESS TESTING MACHINES. DELHI: ISI. 1985.