Morehead, J. (1999). Introduction to United States government information sources (6th ed.). Libraries Unlimited.
Style de citation Chicago (17e éd.)Morehead, Joe. Introduction to United States Government Information Sources. 6th ed. Englewood, Colo: Libraries Unlimited, 1999.
Style de citation MLA (9e éd.)Morehead, Joe. Introduction to United States Government Information Sources. 6th ed. Libraries Unlimited, 1999.
Attention : ces citations peuvent ne pas être correctes à 100%.