Citazione Stile APA (7a Edizione)

Gray, W. S., Hanna, P. R., Hoyt, G. A., Becker, C., & Segner, E. (1948). Guidebook for a social studies book A "Peter's family" (Teacher's ed.). Scott, Foresman.

Citazione stile Chigago Style (17a edizione)

Gray, William S., Paul Robert Hanna, Genevieve Anderson Hoyt, Charlotte Becker, e Ellen Segner. Guidebook for a Social Studies Book A "Peter's Family". Teacher's ed. Chicago [u.a.]: Scott, Foresman, 1948.

Citatione MLA (9a ed.)

Gray, William S., et al. Guidebook for a Social Studies Book A "Peter's Family". Teacher's ed. Scott, Foresman, 1948.