machol, R. C., & Machol, R. C. (1976). Elementary systems mathematics: Linear programming for business and the social sciences. Mc-Graw hill.
Citação norma Chicagomachol, Robert C., and Robert C. Machol. Elementary Systems Mathematics: Linear Programming for Business and the Social Sciences. Tokyo: Mc-Graw hill, 1976.
Citação norma MLAmachol, Robert C., and Robert C. Machol. Elementary Systems Mathematics: Linear Programming for Business and the Social Sciences. Mc-Graw hill, 1976.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.