TY - BOOK T1 - Pierre Gy's sampling theory and sampling practice heterogeneity, sampling correctness, and statistical process control. A1 - Pitard, Francis F. LA - English PP - Boca Raton, Fla. PB - CRC Press YR - 1993 ED - 2nd ed. UL - https://tuklas.up.edu.ph/Record/UP-99796217603084804 OP - 488 NO - Prev. published in 2 vols. CN - TN 560 P58 1993 SN - 0849389178 KW - Ores : Sampling and estimation. ER -