Cita APA (7th ed.)
Forman, D. (1990). CAMPUS english: A problem-solving approach to study skills. Macmillan.
Cita Chicago (17th ed.)
Forman, David. CAMPUS English: A Problem-solving Approach to Study Skills. London: Macmillan, 1990.
Cita MLA (9th ed.)
Forman, David. CAMPUS English: A Problem-solving Approach to Study Skills. Macmillan, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.