Kula, Witold Economic theory of the feudal system : towards a model of the polish economy, 1500-1800 Witold Kula ; translated by Lawrence Garner - London NLB c1976 - [6],191p.: front.; 9cm. Subjects--Topical Terms: Feudalism Polish economy Economic theory Feudal tenure Dewey Class. No.: 321.3 / KUL