TY  - GEN
AU  - Christie, Agatha.
TI  - N or M?
SN  - 0006163017
U1  - 823.912 
PY  - 1995///
CY  - London
PB  - Harper Collins Publishers
KW  -  1.Beresford, Tommy (Fictitious character) --Fiction.2.Beresford, Tuppence (Fictitious character) --Fiction. 3.Private investigators --England --Fiction.4.Married people --Fiction
ER  -