Dyfyniad APA

Boslaugh, S. (2007). Secondary data sources for public health: A practical guide. Cambridge University Press.

Dyfyniad Arddull Chicago

Boslaugh, Sarah. Secondary Data Sources for Public Health: A Practical Guide. Cambridge ; New York: Cambridge University Press, 2007.

Dyfyniad MLA

Boslaugh, Sarah. Secondary Data Sources for Public Health: A Practical Guide. Cambridge University Press, 2007.

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