Cita APA

bureau of the Census. (1949). A Chapther in Population Sampling (1949.). U.S. Government Private Office.

Citación estilo Chicago

bureau of the Census. A Chapther in Population Sampling. 1949. America: U.S. Government Private Office, 1949.

Cita MLA

bureau of the Census. A Chapther in Population Sampling. 1949. U.S. Government Private Office, 1949.