Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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