TY  - BOOK
AU  - Van  Lill,J.B.
AU  - Grieve, K. W.
TI  - Descriptive statistics: for students in human sciences 
SN  - 0620144831 (pbk.)
PY  - 1990///
CY  - Pretoria
PB  - Human Resources Information (CC)
KW  - Statistics
N1  - Includes index; Includes bibliographical references
ER  -