Rao, V. K., & Reddy, R. (1997). Readings in learning education: Environmental education. Commonwealth.
Tohutoru Kātū Chicago (17th ed.)Rao, V. K., me R.S Reddy. Readings in Learning Education: Environmental Education. New Delhi, India: Commonwealth, 1997.
Tohutoro MLA (9th ed.)Rao, V. K., me R.S Reddy. Readings in Learning Education: Environmental Education. Commonwealth, 1997.
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