(1967). Interest groups on four continents (4. print.). Univ. of Pittsburgh Press.
Chicago Style (17th ed.) CitationInterest Groups on Four Continents. 4. print. Pittsburgh: Univ. of Pittsburgh Press, 1967.
MLA (9th ed.) CitationInterest Groups on Four Continents. 4. print. Univ. of Pittsburgh Press, 1967.
Warning: These citations may not always be 100% accurate.