Dyfyniad APA

(1991). Development in biological standardization: Vol.75 - Virological aspects of the safety of biological products. Switzerland: Médecine et Hygiène.

Dyfyniad Arddull Chicago

Development in Biological Standardization: Vol.75 - Virological Aspects of the Safety of Biological Products. Switzerland: Médecine et Hygiène, 1991.

Dyfyniad MLA

Development in Biological Standardization: Vol.75 - Virological Aspects of the Safety of Biological Products. Switzerland: Médecine et Hygiène, 1991.

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