Cita APA (7th ed.)

REIN, D. P. (1985). Grolier advanced english course: English proficieney international test. Grolier Interntional.

Cita Chicago (17th ed.)

REIN, David P. Grolier Advanced English Course: English Proficieney International Test. (sl): Grolier Interntional, 1985.

Cita MLA (9th ed.)

REIN, David P. Grolier Advanced English Course: English Proficieney International Test. Grolier Interntional, 1985.