Dyfyniad APA

American Library Association ALA. (1967). Minimum standards for public library systems, 1966. ALA.

Dyfyniad Arddull Chicago

American Library Association ALA. Minimum Standards for Public Library Systems, 1966. Chicago: ALA, 1967.

Dyfyniad MLA

American Library Association ALA. Minimum Standards for Public Library Systems, 1966. ALA, 1967.

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