Dyfyniad APA

ebrary, Inc. (2004). Financing vaccines in the 21st century: Assuring access and availability. National Academies Press.

Dyfyniad Arddull Chicago

ebrary, Inc. Financing Vaccines in the 21st Century: Assuring Access and Availability. Washington, D.C.: National Academies Press, 2004.

Dyfyniad MLA

ebrary, Inc. Financing Vaccines in the 21st Century: Assuring Access and Availability. National Academies Press, 2004.

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