APA (7th ed.) Citation

Williamson, M. R., & Gaposchkin, E. M. (1975). The estimation of 550 km x 550 km mean gravity anomalies. Smithsonian Institution, Astrophysical Observatory.

Chicago Style (17th ed.) Citation

Williamson, M. R., and E. M. Gaposchkin. The Estimation of 550 Km X 550 Km Mean Gravity Anomalies. Cambridge, Mass.: Smithsonian Institution, Astrophysical Observatory, 1975.

MLA (9th ed.) Citation

Williamson, M. R., and E. M. Gaposchkin. The Estimation of 550 Km X 550 Km Mean Gravity Anomalies. Smithsonian Institution, Astrophysical Observatory, 1975.