Dyfyniad APA

(1981). Health maintenance through food and nutrition: A guide to information sources / Helen D. Ullrich.

Dyfyniad Arddull Chicago

Health Maintenance Through Food and Nutrition: A Guide to Information Sources / Helen D. Ullrich. 1981.

Dyfyniad MLA

Health Maintenance Through Food and Nutrition: A Guide to Information Sources / Helen D. Ullrich. 1981.

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