Cita APA (7a ed.)

Mervin, D. (1993). The president of the United States. Harvester Wheatsheaf.

Cita Chicago Style (17a ed.)

Mervin, David. The President of the United States. New York [etc.]: Harvester Wheatsheaf, 1993.

Cita MLA (9a ed.)

Mervin, David. The President of the United States. Harvester Wheatsheaf, 1993.