APA استشهاد

Buck, R., & Willcox, A. Calculus of several variables. Haughton Mifflin company.

استشهاد بنمط شيكاغو

Buck, R.C, و A.B Willcox. Calculus of Several Variables. Boston: Haughton Mifflin company.

MLA استشهاد

Buck, R.C, و A.B Willcox. Calculus of Several Variables. Haughton Mifflin company.