Citazione Stile APA (7a Edizione)

Gray, W. S., Hanna, P. R., Hoyt, G. A., Breuer, M., & Maastri, F. (1948). Guidebook for social studies book D "New Centerville" (Teacher's ed.). Scott, Foresman.

Citazione stile Chigago Style (17a edizione)

Gray, William S., Paul Robert Hanna, Genevieve Anderson Hoyt, Matilda Breuer, e Fiore Maastri. Guidebook for Social Studies Book D "New Centerville". Teacher's ed. Chicago [u.a.]: Scott, Foresman, 1948.

Citatione MLA (9a ed.)

Gray, William S., et al. Guidebook for Social Studies Book D "New Centerville". Teacher's ed. Scott, Foresman, 1948.