Dyfyniad APA

The Radiological Society of North America. (1981). Radiology Volume 138 number 2 February 1981. The radiological society.

Dyfyniad Arddull Chicago

The Radiological Society of North America. Radiology Volume 138 Number 2 February 1981. : The radiological society, 1981.

Dyfyniad MLA

The Radiological Society of North America. Radiology Volume 138 Number 2 February 1981. The radiological society, 1981.

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