Organ Pipe Cactus National Monument, Ecological Monitoring Program, annual report 1993
By: The Division of Natural and Cultural Resources Management, Organ Pipe Cactus National Monument.
Contributors: Organ Pipe Cactus National Monument (Ariz.). Division of Natural and Cultural Resources Management.; United States. National Park Service.; National Park Service Cooperative Park Studies Unit (Tucson, Ariz.)
Publisher: National Biological Service, Cooperative Park Studies Unit, The University of Arizona; National Park Service, Organ Pipe Cactus National Monument
Published: 1995
Place of publication: Tucson, Ariz; Ajo, Ariz
Language: eng
Number of pages: 115
Subjects: Environmental monitoring -- Arizona -- Organ Pipe Cactus National Monument.; National monuments -- Arizona -- Organ Pipe Cactus National Monument.; Organ Pipe Cactus National Monument (Ariz.) -- Environmental aspects.
Notes: "September 1995."

Includes bibliographical references (p. 114-115).