यो Book आफ्नो भाषा मा अवस्थित छैन, हेर्नुहोस्: English (en),
अथवा गुगल अनुवाद प्रयोग:  

This book includes question and answers on how to improve and maintain tropical soil fertility.  It also includes activity guides and a resource listing.

Publication Details

  • Published: 2002
  • Publisher: OUTREACH/TV
  • Dewey Decimal: 551.3
  • ECHO Library: 551.3 KAH