APA (7th ed.) Citation

Fowler, D. H. (1983). Eratosthenes' ratio for the obliquity of the ecliptic.

Chicago Style (17th ed.) Citation

Fowler, David H. Eratosthenes' Ratio for the Obliquity of the Ecliptic. 1983.

MLA (9th ed.) Citation

Fowler, David H. Eratosthenes' Ratio for the Obliquity of the Ecliptic. 1983.

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