National Geographic Book Service (Estados Unidos), Lanting, F., & Eckstrom, C. K. (1993). Parajes vírgenes de la tierra. Washington, D.C.: National Geographic Society.
Chicago Style CitationNational Geographic Book Service (Estados Unidos), Frans Lanting, and Christine K. Eckstrom. Parajes Vírgenes De La Tierra. Washington, D.C.: National Geographic Society, 1993.
MLA CitationNational Geographic Book Service (Estados Unidos), Frans Lanting, and Christine K. Eckstrom. Parajes Vírgenes De La Tierra. Washington, D.C.: National Geographic Society, 1993.
Warning: These citations may not always be 100% accurate.