Stapf, Helmut Technical fundamentals : tecnical chemistry / by Helmut Stapf ; revised by K. Schwarz ; translated from the German by Herbert Liebscher - Bombay : Asia Pub., c1967 - 242p. : ill. ; 22 cm. ISBN: Rs. 20.00 Subjects--Topical Terms: AcidsChemistry Dewey Class. No.: 540