Robertson, G. W. (1970). Development of simplified agroclimatic procedures for assessing temperature effects (on crop development). WMO/UNDP Project, "Meteorological Training and Research, Manila," Philippine Weather Bureau [and] Dept. of Meteorology, University of the Philippines.

Robertson, Geo. W. Development of Simplified Agroclimatic Procedures for Assessing Temperature Effects (on Crop Development). [Manilan]: WMO/UNDP Project, "Meteorological Training and Research, Manila," Philippine Weather Bureau [and] Dept. of Meteorology, University of the Philippines, 1970.

Robertson, Geo. W. Development of Simplified Agroclimatic Procedures for Assessing Temperature Effects (on Crop Development). WMO/UNDP Project, "Meteorological Training and Research, Manila," Philippine Weather Bureau [and] Dept. of Meteorology, University of the Philippines, 1970.