@misc{indiciaec328e4d5ee03, title = {USGS48 Puerto Rico precipitation - A new isotopic reference material for δ 2 H and δ 18 O measurements of water}, author = {Haiping Qi and Tyler B. Coplen and Lauren V. Tarbox and Jennifer M. Lorenz and Martha A. Scholl}, year = {2014}, doi = {10.1080/10256016.2014.905555}, url = {https://pubs.usgs.gov/publication/70186518}, note = {Source identifier: 70186518} }