APA (7th ed.) Citation

Brown, R. A., & Kumar, A. (2011). A new perspective on Eratosthenes' measurement of the earth.

Chicago Style (17th ed.) Citation

Brown, Ronald A., and Alok Kumar. A New Perspective on Eratosthenes' Measurement of the Earth. 2011.

MLA (9th ed.) Citation

Brown, Ronald A., and Alok Kumar. A New Perspective on Eratosthenes' Measurement of the Earth. 2011.

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