Cofnodi Dyfyniadau
Dyfyniad APA
Beaglehole, R., Bonita, R., & Kjellström, T. (1993). Basic epidemiology. World Health Organization.
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Dyfyniad Arddull Chicago
Beaglehole, R., R. Bonita, and Tord Kjellström. Basic Epidemiology. Geneva: World Health Organization, 1993.
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Dyfyniad MLA
Beaglehole, R., et al. Basic Epidemiology. World Health Organization, 1993.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.