Dyfyniad APA

Olsen Jan Abel. (2009). Principles in health economics and policy. Oxford University Press.

Dyfyniad Arddull Chicago

Olsen Jan Abel. Principles in Health Economics and Policy. Oxford: Oxford University Press, 2009.

Dyfyniad MLA

Olsen Jan Abel. Principles in Health Economics and Policy. Oxford University Press, 2009.

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