Columbia subject headings:
Metrovalencia Disaster, Valencia, Spain, 2006--Comic books, strips, etc.
Railroad accidents--Spain--Valencia--Comic books, strips, etc.
Harvard subject headings:
Caricatures and cartoons--Spain.
Metrovalencia Disaster, Valencia, Spain, 2006--Caricatures and cartoons.
Railroad accidents--Spain--Valencia--Caricatures and cartoons.
Princeton subject headings:
Metrovalencia Disaster, Valencia, Spain, 2006.--Caricatures and cartoons.
Railroad accidents--Spain--Valencia--Caricatures and cartoons.