Aquarium guide
GUIDE
INTRO
WATER
FISH
INVERTEBRATES
PLANTS
TECHNIQUES
CUSTOMIZING
CATALOG
FRESHWATER FISH
MARINE FISH
INVERTEBRATES
AQUARIUM PLANTS
CONTACTS
SEARCH
INTRO
INTRO
INTRODUCTION
A WINDOW ONTO ANOTHER WORLD
FISHKEEPING, SCIENCE, AND AQUACULTURE
A SYSTEM IN EQUIPOISE
THE AQUARIUM: AN ALTERNATIVE APPROACH TO ECOLOGY
INTRODUCTION >>
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ПЛЕСНЕР (Plessner) Хельмут (1892-1985) , немецкий философ и социолог, наряду с М. Шелером один из основоположников философской антропологии.
