TY  - BOOK
AU  - Guthrie John T.
AU  -  Seifert Mary
TI  - Measuring readership :  Rationale and technique
U1  - z8:b6, M4 
PY  - 1984///
CY  - Paris
PB  - Unesco        
KW  - GENERALIA
N1  - Appendix (p 93-111)
ER  -