Dyfyniad APA

Krag, P., & Bentzon, M. W. (1963). The International Reference Preparation of Smallpox Vaccine: An international collaborative assay.

Dyfyniad Arddull Chicago

Krag, P., and M. Weis Bentzon. The International Reference Preparation of Smallpox Vaccine: An International Collaborative Assay. 1963.

Dyfyniad MLA

Krag, P., and M. Weis Bentzon. The International Reference Preparation of Smallpox Vaccine: An International Collaborative Assay. 1963.

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