Dyfyniad APA

Williamson, C. D. (1963). Executive operations technique. Prentice hall.

Dyfyniad Arddull Chicago

Williamson, C. Don. Executive Operations Technique. New Jersey: Prentice hall, 1963.

Dyfyniad MLA

Williamson, C. Don. Executive Operations Technique. Prentice hall, 1963.

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