Boslaugh, S. (2007). Secondary data sources for public health: A practical guide. Cambridge University Press.
Chicago-referens (17:e uppl.)Boslaugh, Sarah. Secondary Data Sources for Public Health: A Practical Guide. Cambridge ; New York: Cambridge University Press, 2007.
MLA-referens (8:e uppl.)Boslaugh, Sarah. Secondary Data Sources for Public Health: A Practical Guide. Cambridge University Press, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.