APA (7th ed.) Citation

Keith, D. H., & Frey, D. A. (1979). Saturation Diving in Nautical Archaeology.

Chicago Style (17th ed.) Citation

Keith, D. H., and D. A. Frey. Saturation Diving in Nautical Archaeology. 1979.

MLA (9th ed.) Citation

Keith, D. H., and D. A. Frey. Saturation Diving in Nautical Archaeology. 1979.

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