Chowdhury,, Kamalesh . Higher Secondary Chemistry: Part I / Textual Documents Kamalesh Chowdhury & Satyendra Kr. Chowdhury. - 1st ed. / - Assam : Oxford University Press , 1995. - 391p. : ill ; 23 cm . ISBN: HB Subjects--Index Terms: Chemistry G-Chemistry Dewey Class. No.: 540 / Ch 457 Hi