TY - BOOK AU - Hartmut Albrecht AU - Herbert Bergmann Georg Diederich Eberhard Grober TI - Agricultural Extension SN - 3-88085-364-9 U1 - 630.715 PY - 1989/// CY - New Delhi PB - New Age International Limited Publishers N1 - Hartmut Albrecht; Herbert Bergmann; Georg Diederich & Eberhard Grober: Agricultural Extension. New Delhi. New Age International Limited Publishers, 1989. 3-88085-364-9--(630.715ALB) ER -