Образователен портал,теми,реферати,лекции

   This massive volume covers all aspects of marine mammals, with the topics alphabetically arranged for ease of use. The 283 articles contained here were expressly commissioned for this volume, and represent the most scientifically accurate and current science available on marine mammals. The encyclopedia is generously illustrated with photographs (including 16 pages of color plates), anatomical line drawings, charts, and figures.