TY - JOUR T1 - Economic analysis of organic greenhouse lettuce production in Turkey JO - Scientia Agricola A1 - Engindeniz, Sait A1 - Tuzel, Yuksel SN - 0103-9016 UL - 10.1590/S0103-90162006000300012 VL - 63 Y1 - 2006 PB - Brasil ER -