Dyfyniad APA

Ballou, H. W. (1959). Guide to microreproduction equipment. National Microfilm Association.

Dyfyniad Arddull Chicago

Ballou, Hubbard W. Guide to Microreproduction Equipment. Annapolis, Md: National Microfilm Association, 1959.

Dyfyniad MLA

Ballou, Hubbard W. Guide to Microreproduction Equipment. National Microfilm Association, 1959.

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