Wright, D. F. Elementary algebra for college students. D.C. Heath and Company.
Citazione stile Chigago Style (17a edizione)Wright, D. Franklin. Elementary Algebra for College Students. Lexington, Massachusetts: D.C. Heath and Company.
Citatione MLA (9a ed.)Wright, D. Franklin. Elementary Algebra for College Students. D.C. Heath and Company.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.