Gupta, J. P.
Selected industrial chemicals - 1st ed. - Delhi Small Business n.d. - xiv, 339 p. ill. - SBP chemical engineering series no. 38 .
Industrial chemical
661 / GUP/n.d.
Selected industrial chemicals - 1st ed. - Delhi Small Business n.d. - xiv, 339 p. ill. - SBP chemical engineering series no. 38 .
Industrial chemical
661 / GUP/n.d.