@inbook{inbook47650d55,
title   = {Influence of soil and leaf applications of micronutrients on yield and fruit quality of citrus sinensis osbeck, variety pera},
author = {Vitti, G C and Donadio, L C and Delarco, R D and Malavolta, E. and Cabrita, J R M},
year = {1993},
publisher = {Kluwer Academic Plublishers},
journal   = {Optimization of Plant Nutrition}
}