TY - RPRT TI - Determination of δ 18 O and δ 15 N in Nitrate AU - K. Revesz AU - J.K. Böhlke AU - T. Yoshinari PY - 1997 DO - 10.1021/ac9610523 UR - https://pubs.usgs.gov/publication/70019465 ID - 70019465 ER -