@BOOK{ Book!D - 93046109,
AUTHOR = "/ John L. Havlin...[et al.]",
TITLE = "Soil fertility and fertilizers",
LIBRARY= "کتابخانه مرکزی و مرکز اطلاع رسانی دانشگاه محقق اردبیلی ره",
SUBJECT = "Fertilizers,Soil Fertility,Crops - nutrition",
URL = "/book/93046109/Soil-fertility-and-fertilizers/"}