TY  - BOOK
AU  - Grogmann,Carl J.
TI  - Principles and practice of statistics
U1  - 311 
PY  - 1964///
CY  - London
PB  - George G. Harrap
KW  - Statistics
KW  - Sampling (Statistics)
KW  - Frequency curves
KW  - Charts, diagrams, etc
N1  - Includes index
ER  -