Dyfyniad APA

ebrary, Inc, Steen, D. B., & Dyson, H. L. (2009). Vaccinations: Types, potential complications and health effects. Nova Science Publishers.

Dyfyniad Arddull Chicago

ebrary, Inc, David B. Steen, and Howard L. Dyson. Vaccinations: Types, Potential Complications and Health Effects. Hauppauge, N.Y.: Nova Science Publishers, 2009.

Dyfyniad MLA

ebrary, Inc, et al. Vaccinations: Types, Potential Complications and Health Effects. Nova Science Publishers, 2009.

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