APA (7th ed.) Citation

Goodacre, A. K., Grieve, R. A. F., Halpenny, J. F., & Geological Survey of Canada. (1987). Free air gravity anomaly map of Canada. Geological Survey of Canada.

Chicago Style (17th ed.) Citation

Goodacre, A. K., Richard A. F. Grieve, J. F. Halpenny, and Geological Survey of Canada. Free Air Gravity Anomaly Map of Canada. Ottawa: Geological Survey of Canada, 1987.

MLA (8th ed.) Citation

Goodacre, A. K., et al. Free Air Gravity Anomaly Map of Canada. Geological Survey of Canada, 1987.

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