APA (7th ed.) Zitazioa

(1924). The project method in classroom work / by E. A. Hotchkiss.

Chicago Style (17th ed.) Zitazioa

The Project Method in Classroom Work / by E. A. Hotchkiss. 1924.

MLA (9th ed.) Zitazioa

The Project Method in Classroom Work / by E. A. Hotchkiss. 1924.

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