APA
(1989). Chemistry ;A Textbook for Class Xll: Part-1. New Delhi: NCERT.
Chicago
1989. Chemistry ;A Textbook for Class Xll: Part-1. New Delhi: NCERT.
Harvard
(1989). Chemistry ;A Textbook for Class Xll: Part-1. New Delhi: NCERT.
MLA
Chemistry ;A Textbook for Class Xll: Part-1. New Delhi: NCERT. 1989.
