APA
PURAKYASTHA B. D., PURAKYASTHA B. D. & CHAKRABOTY B. B. (1994). COLLEGE CHEMISTRY. NEW DELHI: KALYANI PUBLISHERS.
Chicago
PURAKYASTHA B D, PURAKYASTHA B D and CHAKRABOTY B B. 1994. COLLEGE CHEMISTRY. NEW DELHI: KALYANI PUBLISHERS.
Harvard
PURAKYASTHA B. D., PURAKYASTHA B. D. and CHAKRABOTY B. B. (1994). COLLEGE CHEMISTRY. NEW DELHI: KALYANI PUBLISHERS.
MLA
PURAKYASTHA B D, PURAKYASTHA B D and CHAKRABOTY B B. COLLEGE CHEMISTRY. NEW DELHI: KALYANI PUBLISHERS. 1994.
