G

Reference, information & interdisciplinary subjects.

GB

Encyclopaedias & reference works.

GBC

Reference works.

GBCR

Bibliographies, catalogues.

GBCT

Directories.

GL

Library & information sciences.

GLH

Acquisitions & collection development.

GLK

Bibliographic & subject control.

GLM

Library & information services.

GT

Interdisciplinary studies. Flags, emblems, peace studies & conflict resolution…

GTH

Flags, emblems, symbols, logos.

GTJ

Peace studies & conflict resolution.