Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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