Downing, J. C. (1976). The DDC: The Classification Upon Which the Sun Never Sets.
Chicago Style (17th ed.) CitationDowning, Joel C. The DDC: The Classification Upon Which the Sun Never Sets. 1976.
MLA (9th ed.) CitationDowning, Joel C. The DDC: The Classification Upon Which the Sun Never Sets. 1976.
Warning: These citations may not always be 100% accurate.