Gass, S. I. (1970). An illustrated guide to linear programming. New York: McGraw-Hill Book Company.
Παραπομπή Chicago StyleGass, Saul I. An Illustrated Guide to Linear Programming. New York: McGraw-Hill Book Company, 1970.
Παραπομπή MLAGass, Saul I. An Illustrated Guide to Linear Programming. New York: McGraw-Hill Book Company, 1970.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.