TY  - BOOK
AU  - Jizba Z V
TI  - Mean and standard deviation of certain geologic data: a discussion
U1  - 000SB:551 
PY  - 1953///
KW  - Geologic data
KW  - Mean
KW  - Standard deviation
N1  - Photo copy from the American Journal of Science ; v.251, Dec.1953 ; p.899-906
ER  -