Subclass G - Geography (General). Atlases. Maps.

Subclass GA - Mathematical geography. Cartography.

Subclass GB - Physical geography.

Subclass GC - Oceanography.

Subclass GE - Environmental Sciences.

Subclass GF - Human ecology. Anthropogeography.

Subclass GN - Anthropology.

Subclass GR - Folklore.

Subclass GT - Manners and customs (General).

Subclass GV - Recreation, Leisure.

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