APA استشهاد

Gass, S. I., & Gass, S. I. (1979). Operations research, mathematics and models.V.25. American Mathematical Society.

استشهاد بنمط شيكاغو

Gass, Saul I.ed, و Saul I. Gass. Operations Research, Mathematics and Models.V.25. Providence, R.I.: American Mathematical Society, 1979.

MLA استشهاد

Gass, Saul I.ed, و Saul I. Gass. Operations Research, Mathematics and Models.V.25. American Mathematical Society, 1979.