Энэ нь Book Таны хэл дээр байхгүй байгаа, Нь харах: English (en),
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This book may no longer be available in print.

This book gives practical answers on how to use simple bio-systems for recycling waste while placing them in th broader context of our world.

93 pages, illustrated

Publication Details

  • Published: 1975
  • Publisher: Gobar Gas Research Station
  • Dewey Decimal: 665.776
  • ECHO Library: 665.776 SIN

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