Special report on the trap dykes and azoic rocks of southeastern Pennsylvania
[electronic resource] /
by T. Sterry Hunt.
APA Citation
Hunt, T. Sterry. (1878). Special report on the trap dykes and azoic rocks of southeastern Pennsylvania. Harrisburg [Pa.]: Board of Commissioners for the Second Geological Survey.
MLA Citation
Hunt, Thomas Sterry, 1826-1892. Special Report On the Trap Dykes And Azoic Rocks of Southeastern Pennsylvania. Harrisburg [Pa.]: Board of Commissioners for the Second Geological Survey, 1878.
Warning: These citations may not always be complete (especially for serials).