@article{216036, recid = {216036}, author = {Barron, John A.}, title = {Diatom constraints on sea surface temperatures and sea ice distribution during the middle part of the Pliocene /}, publisher = {U.S. Geological Survey,}, address = {[Menlo Park, CA] :}, pages = {45 leaves :}, year = {1996}, note = {Cover title.}, url = {http://library.usi.edu/record/216036}, }