Dyfyniad APA

(1990). The importance of calcium in osteoporosis prevention: Official position of the Osteoporosis Society of Canada.

Dyfyniad Arddull Chicago

The Importance of Calcium in Osteoporosis Prevention: Official Position of the Osteoporosis Society of Canada. 1990.

Dyfyniad MLA

The Importance of Calcium in Osteoporosis Prevention: Official Position of the Osteoporosis Society of Canada. 1990.

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