Cita APA (7a ed.)

Gray, W. S., Arbuthnot, M. H., & Ward, K. (1940). Our new friends (Examination edition, a revision of the Elson-Gray Basic Readers.). Scott, Foresman and Company.

Cita Chicago Style (17a ed.)

Gray, William S., May Hill Arbuthnot, y Keith Ward. Our New Friends. Examination edition, a revision of the Elson-Gray Basic Readers. Chicago Atlanta Dallas New York: Scott, Foresman and Company, 1940.

Cita MLA (9a ed.)

Gray, William S., et al. Our New Friends. Examination edition, a revision of the Elson-Gray Basic Readers. Scott, Foresman and Company, 1940.