Correlation of the North American Silurian rocks.

MLA

Berry, William B. N. and A. J. Boucot. Correlation of the North American Silurian rocks. [Boulder, Colo.] : Geological Society of America, [1970]

APA

Berry, W. & Boucot, A. (1970). Correlation of the North American Silurian rocks. [Boulder, Colo.] : Geological Society of America.

Chicago

Berry, William B. N. and A. J. Boucot. Correlation of the North American Silurian rocks. [Boulder, Colo.] : Geological Society of America, [1970]