Procesos microbianos de eliminación de contaminantes en biorremediación Gloria Stella Acosta Peñaloza
Two Ornithologists on the Lower Danube - Being a Record of a Journey to the Dobrogea and the Danube Delta with a Systematic List of the Birds Observed H. Kirke Swann
The Reign of Wolf 21- The Saga of Yellowstone’s Legendary Druid Pack: The Saga of Yellowstone's Legendary Druid Pack Rick McIntyre4
Reptiles - Part V - The Zoology of the Voyage of H.M.S Beagle: Under the Command of Captain Fitzroy - During the Years 1832 to 1836 Charles Darwin
Birds - Part III - The Zoology of the Voyage of H.M.S Beagle: Under the Command of Captain Fitzroy - During the Years 1832 to 1836 Charles Darwin