THE NATIONAL GEOGRAPHIC MAGAZINE, SEPTEMBER 1991(Germany-The Morning After; Jumping Spiders; Medical Donors: A New Kind of Kinship; Maya Artistry Unearthed and A Shameful Harvest America's Illegal Wildlife Trade)
National Geographic Society
Washington D. C. 1991. National Geographic Society. Official journal of the National Geographic Society. September 1991. Volume 180. Number 3. 130 pp (aprox). 25 x 17. Rústica. Ilustrado. En Inglés.