Cita APA (7a ed.)

Troster, J. I. (1975). A Practical way to english: Book one (16.ed.). Instituto Roosevelt Bentivegna.

Cita Chicago Style (17a ed.)

Troster, Joseph I. A Practical Way to English: Book One. 16.ed. São Paulo, SP: Instituto Roosevelt Bentivegna, 1975.

Cita MLA (9a ed.)

Troster, Joseph I. A Practical Way to English: Book One. 16.ed. Instituto Roosevelt Bentivegna, 1975.