@article{120804, note = {Shipping list no.: 85-930-P.}, author = {Poppe, Lawrence J. and Eliason, A. H. and Fredericks, J. J.}, url = {http://library.usi.edu/record/120804}, title = {APSAS, an automated particle size analysis system : a computer- based system designed to rapidly and accurately perform sediment grain-size analyses and calculate statistics /}, publisher = {U.S. Geological survey,}, recid = {120804}, pages = {iii, 77 p. :}, address = {[Reston, Va.] :}, year = {1985}, }