APA

Arvind Kumar e. a., . (1988). Physics: A textbook for class XI. : NCERT.

Chicago

Arvind Kumar et al, . 1988. Physics: A textbook for class XI. : NCERT.

Harvard

Arvind Kumar e. a., . (1988). Physics: A textbook for class XI. : NCERT.

MLA

Arvind Kumar et al, . Physics: A textbook for class XI. : NCERT. 1988.