Dyfyniad APA

(1981). Education and information science libraries, including audiovisual, picture, publishing, rarebook and recreational libraries (6th ed.). Gale Research.

Dyfyniad Arddull Chicago

Education and Information Science Libraries, Including Audiovisual, Picture, Publishing, Rarebook and Recreational Libraries. 6th ed. Detroit: Gale Research, 1981.

Dyfyniad MLA

Education and Information Science Libraries, Including Audiovisual, Picture, Publishing, Rarebook and Recreational Libraries. 6th ed. Gale Research, 1981.

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