Denniston, D., & Ayres, E. (1995). High priorities: Conserving mountain ecosystems and cultures. Worldwatch Institute.
Cita Chicago Style (17a ed.)Denniston, Derek, y Ed Ayres. High Priorities: Conserving Mountain Ecosystems and Cultures. Washington, DC: Worldwatch Institute, 1995.
Cita MLA (9a ed.)Denniston, Derek, y Ed Ayres. High Priorities: Conserving Mountain Ecosystems and Cultures. Worldwatch Institute, 1995.
Precaución: Estas citas no son 100% exactas.