(1978). Symbols for tourist guides, maps, and country side recreation. [London] : British Tourist Anthority.
Chicago Style (17th ed.) CitationSymbols for Tourist Guides, Maps, and Country Side Recreation. [London] : British Tourist Anthority, 1978.
MLA (9th ed.) CitationSymbols for Tourist Guides, Maps, and Country Side Recreation. [London] : British Tourist Anthority, 1978.
Warning: These citations may not always be 100% accurate.