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