Williams, B. (1978). A sampler on sampling. John Wiley and Sons.
Chicagoスタイル(17版)引用形式Williams, Bill. A Sampler on Sampling. Nueva York: John Wiley and Sons, 1978.
MLA(9版)引用形式Williams, Bill. A Sampler on Sampling. John Wiley and Sons, 1978.
警告: この引用は必ずしも正確ではありません.