KellerLynn, K. (2012). El Morro National Monument: Geologic resource evaluation report. National Park Service, Geologic Resources Division ; U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science.
Chicago Style (17th ed.) CitationKellerLynn, Katie. El Morro National Monument: Geologic Resource Evaluation Report. Denver, CO : Fort Collins, Colorado: National Park Service, Geologic Resources Division ; U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2012.
MLA (9th ed.) CitationKellerLynn, Katie. El Morro National Monument: Geologic Resource Evaluation Report. National Park Service, Geologic Resources Division ; U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2012.