TY - BOOK AU - Roberts,Joseph K. TI - The geology of the Virginia Triassic, T2 - Virginia. Geological survey. Bulletin 29 AV - QE676 .R6 1928 PY - 1928/// CY - University, Va., [Charlottesville PB - Michie Co., printers] KW - Geology, Stratigraphic KW - Triassic KW - Geology KW - Virginia KW - Bibliography N1 - At head of title: State of Virginia. Conservation and Development Commission; Published also as thesis (Ph. D.) Johns Hopkins University; Bibliography: p. 177-199 ER -