Dyfyniad APA

World Health Organization. (1997). Manual of laboratory methods for testing of vaccines used in the WHO Expanded Programme on Immunization. World Health Organization.

Dyfyniad Arddull Chicago

World Health Organization. Manual of Laboratory Methods for Testing of Vaccines Used in the WHO Expanded Programme on Immunization. Geneva: World Health Organization, 1997.

Dyfyniad MLA

World Health Organization. Manual of Laboratory Methods for Testing of Vaccines Used in the WHO Expanded Programme on Immunization. World Health Organization, 1997.

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