Cita APA (7a ed.)

Hydrick, B., & Murphy, G. (1987). A guide to the microfilm edition of Confidential U.S. State Department Central Files: Decimal numbers 693, 693B, 611.93, 611.93B, and 611.93C. University Publications of America.

Cita Chicago Style (17a ed.)

Hydrick, Blair, y Gregory Murphy. A Guide to the Microfilm Edition of Confidential U.S. State Department Central Files: Decimal Numbers 693, 693B, 611.93, 611.93B, and 611.93C. Frederick, MD: University Publications of America, 1987.

Cita MLA (8a ed.)

Hydrick, Blair, y Gregory Murphy. A Guide to the Microfilm Edition of Confidential U.S. State Department Central Files: Decimal Numbers 693, 693B, 611.93, 611.93B, and 611.93C. University Publications of America, 1987.