APA (7th ed.) Citation

Kirkham, V. R. D. (1931). Snake River downwarp. Journal of Geology?.

Chicago Style (17th ed.) Citation

Kirkham, Virgil R. D. Snake River Downwarp. [Chicago?: Journal of Geology?, 1931.

MLA (8th ed.) Citation

Kirkham, Virgil R. D. Snake River Downwarp. Journal of Geology?, 1931.

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