Cita APA (7a ed.)

Marques, A., & Soeiro, R. (1982). Time for english: Book 3 (4.ed.). Ática W. Roth.

Cita Chicago Style (17a ed.)

Marques, Amadeu, y Roberto Soeiro. Time for English: Book 3. 4.ed. São Paulo, SP: Ática W. Roth, 1982.

Cita MLA (9a ed.)

Marques, Amadeu, y Roberto Soeiro. Time for English: Book 3. 4.ed. Ática W. Roth, 1982.