Getts ,Gregory B. Portfolio Risk Management : A Computer Simulation for Stock and Options / by Gregory B. Getts and Peter H. Ritchken and Harvey M. Salkin - New York : Addison Wesley publishing , 1989. - 136p. ISBN: 0201064987 Subjects--Topical Terms: Delta economics Gamma PRM Level Dewey Class. No.: 332.6322 / GET/P