APA (7th ed.) Citation

Watkins, J. S., Godson, R. H., & Watson, K. (1967). Seismic detection of near-surface cavities. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Watkins, Joel S., Richard H. Godson, and Kenneth Watson. Seismic Detection of Near-surface Cavities. Washington: U.S. Govt. Print. Off, 1967.

MLA (9th ed.) Citation

Watkins, Joel S., et al. Seismic Detection of Near-surface Cavities. U.S. Govt. Print. Off, 1967.