Cita APA (7th ed.)

Hubbard, J. P., & Levit, E. J. (1985). The National Board of Medical Examiners: The first seventy years; a continuing commitment to excellence. National Board of Medical Examiners.

Cita Chicago (17th ed.)

Hubbard, John P., i Edithe J. Levit. The National Board of Medical Examiners: The First Seventy Years; a Continuing Commitment to Excellence. Philadelphia: National Board of Medical Examiners, 1985.

Cita MLA (9th ed.)

Hubbard, John P., i Edithe J. Levit. The National Board of Medical Examiners: The First Seventy Years; a Continuing Commitment to Excellence. National Board of Medical Examiners, 1985.