Cita APA (7a ed.)
Phillips, D. Longman Preparation Course for the TOEFL Test: The Paper Test. Longman.
Cita estilo Chicago (17a ed.)
Phillips, Deborah. Longman Preparation Course for the TOEFL Test: The Paper Test. Nueva York, EUA: Longman.
Cita MLA (9a ed.)
Phillips, Deborah. Longman Preparation Course for the TOEFL Test: The Paper Test. Longman.
Precaución: Estas citas no son 100% exactas.