APA-Zitierstil (7. Ausg.)

Instituto de Idiomas Yázigi S. C. (1973). Let's have fun: English for brazilian high school students: book one (3.ed.). Difusão Nacional do Livro.

Chicago-Zitierstil (17. Ausg.)

Instituto de Idiomas Yázigi S. C. Let's Have Fun: English for Brazilian High School Students: Book One. 3.ed. São Paulo, SP: Difusão Nacional do Livro, 1973.

MLA-Zitierstil (9. Ausg.)

Instituto de Idiomas Yázigi S. C. Let's Have Fun: English for Brazilian High School Students: Book One. 3.ed. Difusão Nacional do Livro, 1973.