Graduate Record Examinations Board, Council of Graduate Education in the U.S, & Springer, G. P. (1972). Graduate programs and admissions manual. Educational Testing Service.
Cita Chicago (17th ed.)Graduate Record Examinations Board, Council of Graduate Education in the U.S, i George P. Springer. Graduate Programs and Admissions Manual. Princeton, N. J: Educational Testing Service, 1972.
Cita MLA (9th ed.)Graduate Record Examinations Board, et al. Graduate Programs and Admissions Manual. Educational Testing Service, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.