Professional papers. 679. Geology, petroleum development, and seismicity of Santa Barbara Channel Region, Calif, [with list of references cited]; A, Geologic framework of Santa Barbara Channel Region, by J. G. Vedder, H. C. Wagner, and J. E. Schoellhamer; B, Petroleum development in region of Santa Barbara Channel, by R. P. Yerkes, H. C. Wagner, and K. A. Yenne, C, Geologic characteristics of Dos Caudras offshore oil field, by T. H. McCulloh; D, Seismicity and associated effects, Santa Barbara region, by R. M. Hamilton [and others].