Cita APA

(1941). Free and Inexpensive Learning Materials. Nashville, Tennessee: George Peabody College for Teachers.

Citación estilo Chicago

Free and Inexpensive Learning Materials. Nashville, Tennessee: George Peabody College for Teachers, 1941.

Cita MLA

Free and Inexpensive Learning Materials. Nashville, Tennessee: George Peabody College for Teachers, 1941.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.