ISBN: | 0821316737 |
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编目源: | DLC DLC DLC |
地理区域代码: | d------ |
题名: | Agricultural extension : the next step / Agriculture and Rural Development Department. |
索书号: | F312.1/W927E |
出版发行项: | Washington, D.C. : World Bank, c1990. |
载体形态: | vii, 47 p. ; 27 cm. |
书目附注: | Includes bibliographical references (p. 41-47). |