David, P. T. (1942). Barriers to youth employment. American Council on Education.
Chicago (17e ed.) BronvermeldingDavid, Paul Theodore. Barriers to Youth Employment. Washington, D.C: American Council on Education, 1942.
MLA (9e ed.) BronvermeldingDavid, Paul Theodore. Barriers to Youth Employment. American Council on Education, 1942.
Let op: Deze citaties zijn niet altijd 100% accuraat.