APA (7th ed.) Citation

Purcell, L. E. (2010). Vice presidents: A biographical dictionary (4th ed.). Facts On File.

Chicago Style (17th ed.) Citation

Purcell, L. Edward. Vice Presidents: A Biographical Dictionary. 4th ed. New York: Facts On File, 2010.

MLA (9th ed.) Citation

Purcell, L. Edward. Vice Presidents: A Biographical Dictionary. 4th ed. Facts On File, 2010.

Warning: These citations may not always be 100% accurate.