(2011). Labour statistics convention 160 and Labour statistics recommendation 170. Labstat Updates.
Chicago (17e ed.) Bronvermelding"Labour Statistics Convention 160 and Labour Statistics Recommendation 170." Labstat Updates 2011.
MLA (9e ed.) Bronvermelding"Labour Statistics Convention 160 and Labour Statistics Recommendation 170." Labstat Updates, 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.