APA (7th ed.) Citation

Colton, R., & Martin, R. L. (1967). Eclipse Cycles and Eclipses at Stonehenge.

Chicago Style (17th ed.) Citation

Colton, R., and R. L. Martin. Eclipse Cycles and Eclipses at Stonehenge. 1967.

MLA (9th ed.) Citation

Colton, R., and R. L. Martin. Eclipse Cycles and Eclipses at Stonehenge. 1967.

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