Dyfyniad APA

Vega, S. (1982). Does vitamin A prevent smokers from developing lung cancer?

Dyfyniad Arddull Chicago

Vega, Sileny. Does Vitamin A Prevent Smokers From Developing Lung Cancer? 1982.

Dyfyniad MLA

Vega, Sileny. Does Vitamin A Prevent Smokers From Developing Lung Cancer? 1982.

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