Cita APA (7a ed.)

Ferris, F. K., Keener, E. E., & Giddings, A. F. (1944). Learning essential English: [Grade] 3-8. Laidlaw.

Cita Chicago Style (17a ed.)

Ferris, Florence K., Edward Ernest Keener, y Arthur F. Giddings. Learning Essential English: [Grade] 3-8. Chicago ; New York [etc.]: Laidlaw, 1944.

Cita MLA (8a ed.)

Ferris, Florence K., et al. Learning Essential English: [Grade] 3-8. Laidlaw, 1944.