TY  - BOOK
AU  - Yaspan A J
AU  - Ackoff R L
AU  - Halbert M H
ED  - Case Institute of Technology. Ohio
TI  - Exploratory study on the consideration of observational errors in the design of information-collection procedures
U1  - 000SA.52 
PY  - 1956///
CY  - Ohio
PB  - Case Inst of Technology
KW  - Exploratory study
ER  -