TY  - BOOK
AU  - Riordan, Rick
TI  - Heroes of Olympus : The mark of Athena 
SN  - 978 0 14 133576 6
U1  - F RIO 
PY  - 2013///
CY  - London 
PB  -  Puffin
KW  - JACKSON PERCY FICTITIOUS CHARACTER FICTION
ER  -