Dyfyniad APA

Butler, P. (1933). Introduction to Library Science. The University.

Dyfyniad Arddull Chicago

Butler, Pierce. Introduction to Library Science. Chicago: The University, 1933.

Dyfyniad MLA

Butler, Pierce. Introduction to Library Science. The University, 1933.

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