Perush ha-Ribmats le-Mishnah Zeraʿim le-Rabenu Yitshaḳ b"R Malki Tsedeḳ mi-Simponṭ ʿap"i kt"y London u-kt"y Oḳsford ʿim heʿarot ṿe-heʾarot, u-meḳorot u-veʾurim meʾet Nisan Zaḳ"ś - Yitsḥaḳ ben Melki-Tsedeḳ mi-Simponṭ ca. 1090 - 1160