Dyfyniad APA

Murdock, A., & Scutt, C. (1993). Personal effectiveness. Butterworth-Heinemann.

Dyfyniad Arddull Chicago

Murdock, Alexander, and Carol Scutt. Personal Effectiveness. Oxford: Butterworth-Heinemann, 1993.

Dyfyniad MLA

Murdock, Alexander, and Carol Scutt. Personal Effectiveness. Butterworth-Heinemann, 1993.

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