Grissino-Mayer, Henri Dee. 1995. ?Tree-Ring Reconstructions Of Climate And Fire History At El Malpais National Monument, New Mexico?. Geoscience. Geoscience. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=742088811&sid=3&Fmt=2&clientId=43922&RQT=309&VName=PQD.