Cita APA (7th ed.)

Mayer, M. (1968). Diploma: International schools and university entrances. Twentieth Century Fund.

Cita Chicago (17th ed.)

Mayer, Martin. Diploma: International Schools and University Entrances. New York: Twentieth Century Fund, 1968.

Cita MLA (9th ed.)

Mayer, Martin. Diploma: International Schools and University Entrances. Twentieth Century Fund, 1968.