TY  - BOOK
AU  - Jha, Alok
TI  - 50 ways the world could end
AV  - GC QE 721.2 .E97 .J43 2014 
PY  - 2014///
CY  - Quercus
KW  - Natural disasters ; Catastrophes (Geology) ; End of the world ; Extinction (Biology)
ER  -