Pineda, Jaime E.Caselli, PaolaGoodman, Alyssa A.2019-09-242008-05-20Pineda, Jaime E., Paola Caselli, and Alyssa A. Goodman. 2008. “CO Isotopologues in the Perseus Molecular Cloud Complex: theX‐factor and Regional Variations.” The Astrophysical Journal 679 (1): 481–96. https://doi.org/10.1086/586883.0004-637X1538-4357http://nrs.harvard.edu/urn-3:HUL.InstRepos:41397495en-USJournal Article2019-09-2410.1086/586883