Wilson, James Q. American government : : the essentials / [electronic resource] / James Q. Wilson, John J. DiIulio, Jr.. — 6th ed.. — Lexington, Mass. : : D.C. Heath,, c1995.. — xi, 524, 69 p. : : ill. (some col.) ; 26 cm.
Includes bibliographical references (p. 31-40, 2nd group) and index.