Cita APA (7a ed.)
Backstrom, C. H., & Hursh-César, G. (1963). Survey research. Northwestern University Press.
Cita Chicago Style (17a ed.)
Backstrom, Charles Herbert, y Gerald Hursh-César. Survey Research. [Chicago]: Northwestern University Press, 1963.
Cita MLA (9a ed.)
Backstrom, Charles Herbert, y Gerald Hursh-César. Survey Research. Northwestern University Press, 1963.
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