TY  - RPRT
TI  - Palynomorph preparation procedures currently used in the paleontology and stratigraphy laboratories, U.S. Geological Survey
AU  - L. Imogene Doher
PY  - 1980
DO  - 10.3133/cir830
UR  - https://pubs.usgs.gov/publication/cir830
ID  - cir830
ER  -