TY - RPRT TI - Determination of the δ 15 N of total nitrogen in solids; RSIL lab code 2893 AU - Kinga Revesz AU - Haiping Qi AU - Tyler B. Coplen PY - 2006 DO - 10.3133/tm10c11 UR - https://pubs.usgs.gov/publication/tm10C11 ID - tm10C11 ER -