TY - RPRT TI - Development of web-based organic petrology photomicrograph atlases and internet resources for professionals and students AU - Brett J. Valentine AU - Eric A. Morrissey AU - Andy J. Park AU - Mark E. Reidy AU - Paul C. Hackley PY - 2013 DO - 10.1016/j.coal.2012.09.012 UR - https://pubs.usgs.gov/publication/70199701 ID - 70199701 ER -