United States. Bureau of the Census. (1906). Extension of the registration area for births and deaths: Practical example of cooperative census methods as applied to state of Pennsylvania. [Bureau of the Census].
Chicago Style (17th ed.) CitationUnited States. Bureau of the Census. Extension of the Registration Area for Births and Deaths: Practical Example of Cooperative Census Methods as Applied to State of Pennsylvania. Washington: [Bureau of the Census], 1906.
MLA (9th ed.) CitationUnited States. Bureau of the Census. Extension of the Registration Area for Births and Deaths: Practical Example of Cooperative Census Methods as Applied to State of Pennsylvania. [Bureau of the Census], 1906.
Warning: These citations may not always be 100% accurate.