TY  - BOOK
AU  - Sampford,M.R.
TI  - An introduction to sampling theory: with applications to agriculture 
U1  - 519.52 23
PY  - 1962///
CY  - London
PB  - Oliver and Boyd
KW  - Sampling (Statistics)
KW  - Agriculture
KW  - Statistical methods
N1  - Includes bibliographies
ER  -