APA (7th ed.) Zitazioa

(1991). Basic German Language Program, Grades 1-12 [microform].

Chicago Style (17th ed.) Zitazioa

Basic German Language Program, Grades 1-12 [microform]. 1991.

MLA (9th ed.) Zitazioa

Basic German Language Program, Grades 1-12 [microform]. 1991.

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