APA استشهاد

Bhattacharya, S., & Ramachandran, K. Exploring environment book one: A text book for class II.

استشهاد بنمط شيكاغو

Bhattacharya, Shukla, و K. Ramachandran. Exploring Environment Book One: A Text Book for Class II. New Delhi, National Council of educational research and training.

MLA استشهاد

Bhattacharya, Shukla, و K. Ramachandran. Exploring Environment Book One: A Text Book for Class II.