APA (7th ed.) Citation

Radhakrishnan, S. (2011). The Principal Upanishads (1st.). HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Radhakrishnan, S. The Principal Upanishads. 1st. Noida: HarperCollins Publishers, 2011.

MLA (9th ed.) Citation

Radhakrishnan, S. The Principal Upanishads. 1st. HarperCollins Publishers, 2011.

Warning: These citations may not always be 100% accurate.