Prakash, Indu . A Text Book of Practical Physics: For Degree Classes of Indian Universities / Textual Documents Indu Prakash & Ram Krishna. - 19th ed. / - Allahabad : Kitab mahal , 1997. - xvi,452p. : ill ; 22cm . - Vol.I- Index ISBN: PB Subjects--Index Terms: Physics G-Physics Dewey Class. No.: 530 / P 884 T