Dyfyniad APA

(1977). BMA: Annual Report of Council 1976-7—Appendix II.

Dyfyniad Arddull Chicago

BMA: Annual Report of Council 1976-7—Appendix II. 1977.

Dyfyniad MLA

BMA: Annual Report of Council 1976-7—Appendix II. 1977.

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