Dyfyniad APA

(1978). Symbols for tourist guides, maps, and country side recreation. [London] : British Tourist Anthority.

Dyfyniad Arddull Chicago

Symbols for Tourist Guides, Maps, and Country Side Recreation. [London] : British Tourist Anthority, 1978.

Dyfyniad MLA

Symbols for Tourist Guides, Maps, and Country Side Recreation. [London] : British Tourist Anthority, 1978.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.