@article{paperid:1006055,
author = {Ghorbani, Mohammad},
title = {Evaluation of agricultural advisory services effects on Sugar beet in Razavi Khorasan province},
journal = {Journal of Applied Sciences},
year = {2008},
volume = {8},
number = {20},
month = {October},
issn = {1812-5654},
pages = {3733--3737},
			numpages = {4},
keywords = {Extension; elasticity; production function; Iran},
}