Smith, P.B., 1963, Possible Pleistocene-Recent boundary in the Gulf of Alaska, based on benthonic foraminifera, in U.S. Geological Survey, Geological survey research 1963, Short papers in geology, hydrology, Articles 60-121: U.S. Geological Survey Professional Paper 475-C, p. C73-C77.
This publication is part of a larger work. Please see P 475-C for more information.