APA
(1993). Secondary school curriculum Vol. 1. Delhi, India: Central Board of Secondary Education.
Chicago
1993. Secondary school curriculum Vol. 1. Delhi, India: Central Board of Secondary Education.
Harvard
(1993). Secondary school curriculum Vol. 1. Delhi, India: Central Board of Secondary Education.
MLA
Secondary school curriculum Vol. 1. Delhi, India: Central Board of Secondary Education. 1993.
