ডধৎরিপশ, উ. চ., & Lininger, C. A. (1975). The sample survey: Theory and practice. McGraw-Hill.
Dyfyniad Arddull Chicagoডধৎরিপশ, উড়হধষফ চ., and Charles A. Lininger. The Sample Survey: Theory and Practice. New York: McGraw-Hill, 1975.
Dyfyniad MLAডধৎরিপশ, উড়হধষফ চ., and Charles A. Lininger. The Sample Survey: Theory and Practice. McGraw-Hill, 1975.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.