Cofnodi Dyfyniadau
Dyfyniad APA
Backstrom, C. H., & Hursh-César, G. (1963). Survey research. Northwestern University Press.
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Dyfyniad Arddull Chicago
Backstrom, Charles Herbert, and Gerald Hursh-César. Survey Research. [Chicago]: Northwestern University Press, 1963.
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Dyfyniad MLA
Backstrom, Charles Herbert, and Gerald Hursh-César. Survey Research. Northwestern University Press, 1963.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.