Dyfyniad APA

Systems and procedures association. (1950). Systems and procedures journal. Systems and procedures.

Dyfyniad Arddull Chicago

Systems and procedures association. Systems and Procedures Journal. Ohio: Systems and procedures, 1950.

Dyfyniad MLA

Systems and procedures association. Systems and Procedures Journal. Systems and procedures, 1950.

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