@book{390583,
	author = {REINO UNIDO, National Policing Improvement Agency},
	title = {Guidance on policing at airports},
	publisher = {NPIA ; ACPO ; ACPOS},
	year = {2011},
	address = {London},
	note = {Produced on behalf of the Association of Chief Police Officers (ACPO) and the Association of Chief Police Officers in Scotland (ACPOS). Ficheiro de 257 Kb em formato pdf (40 p.). Também disponível em: https://www.acpo.police.uk/documents/uniformed/2011/20110214%20UOBA%20Guidance%20on%20Policing%20at%20Airports_FINAL%20Feb2011.pdf. Acedido a 24 de janeiro de 2011.}
}