TY  - BOOK
AU  - Guilford, J. P. 
AU  - Michael,  Willam B. 
TI  - Elementary Statistical Exercises,   
U1  - 371.26  
PY  - 1956///
CY  - New York
PB  - Mcgraw hill Book
KW  - Education
N1  - Includes appendix
ER  -