Frisch, Ragnar Maxima and minima applications theory and economic applications Ragnar Frisch ; in collaboration with A. Nataf. - Chicago Rand McNally & Co. 1966. - xii, 176 p. ill. LCCN: buc93000080 Subjects--Topical Terms: Maxima and minima.Economics, Mathematical models. LC Class. No.: HB99 / .F713 1966 Dewey Class. No.: 330.15/7