Παραπομπή APA

machol, R. C., & Machol, R. C. (1976). Elementary systems mathematics: Linear programming for business and the social sciences. Mc-Graw hill.

Παραπομπή Chicago Style

machol, Robert C., και Robert C. Machol. Elementary Systems Mathematics: Linear Programming for Business and the Social Sciences. Tokyo: Mc-Graw hill, 1976.

Παραπομπή MLA

machol, Robert C., και Robert C. Machol. Elementary Systems Mathematics: Linear Programming for Business and the Social Sciences. Mc-Graw hill, 1976.