Dyfyniad APA

Russell Harold G. Etc. (1958). Use of books and libraries (9th ed.).

Dyfyniad Arddull Chicago

Russell Harold G. Etc. Use of Books and Libraries. 9th ed. 1958.

Dyfyniad MLA

Russell Harold G. Etc. Use of Books and Libraries. 9th ed. 1958.

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