APA
National Council of Educational Research and Training, . (1965). Biology: a textbook for higher secondary schools section 3: the diversity of animal life. New Delhi: NCERT.
Chicago
National Council of Educational Research and Training, . 1965. Biology: a textbook for higher secondary schools section 3: the diversity of animal life. New Delhi: NCERT.
Harvard
National Council of Educational Research and Training, . (1965). Biology: a textbook for higher secondary schools section 3: the diversity of animal life. New Delhi: NCERT.
MLA
National Council of Educational Research and Training, . Biology: a textbook for higher secondary schools section 3: the diversity of animal life. New Delhi: NCERT. 1965.