នេះ Book មិន​មាន​ក្នុង​ភាសា​របស់​អ្នក, មើល​ក្នុង: English (en),
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This book may no longer be available in print.

This booklet describes what a demonstration entails, how to get ready for the demonstration, and how to conducting your demonstration.

Extension Service, US Dept. of Agriculture

14 pages, illustrated, photos

Publication Details

  • Published: 1974
  • Publisher: U.S. Dept. of Agriculture, Extension Service in cooperation with U.S. AID
  • Dewey Decimal: 371.1
  • ECHO Library: 371.1 USD