Pen, J., & Preston, T. S. (1965). Harmony and conflict in modern society. McGraw-Hill.
Chicago Style (17th ed.) CitationPen, Jan, and Trevor S. Preston. Harmony and Conflict in Modern Society. London: McGraw-Hill, 1965.
MLA (9th ed.) CitationPen, Jan, and Trevor S. Preston. Harmony and Conflict in Modern Society. McGraw-Hill, 1965.
Warning: These citations may not always be 100% accurate.