Gnu Books

Gnu Books is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Book Dealers Used & Rare
• Book Dealers Comic

North American Industry Classification System (NAICS) Categories:

• Book Stores > Book Dealers > Book Dealers Comic
• Used Merchandise Stores > Books, Used & Rare

Standard Industry Classification (SIC) Categories:

• Used Merchandise Stores > Books, Used & Rare
• Book Stores > Book Stores, Nec > Book Dealers Comic