Gallus, S., & et al. (2012). European survey on economic aspects of smoking. European Commission.
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Dyfyniad Arddull Chicago
Gallus, S., and et al. European Survey on Economic Aspects of Smoking. Bruselas: European Commission, 2012.
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Dyfyniad MLA
Gallus, S., and et al. European Survey on Economic Aspects of Smoking. European Commission, 2012.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.