TY - RPRT TI - Design and validation of an onsite atmospheric-water-vapor sampling system to obtain samples for hydrogen-and oxygen-isotope analysis AU - Hans C. Claassen AU - Douglas R. Halm PY - 1992 DO - 10.3133/ofr9274 UR - https://pubs.usgs.gov/publication/ofr9274 ID - ofr9274 ER -