Pettengill, J. S. (1980). Labor unions and the inequality of earned income. North-Holland.
Citazione stile Chigago Style (17a edizione)Pettengill, John S. Labor Unions and the Inequality of Earned Income. Amsterdam: North-Holland, 1980.
Citatione MLA (9a ed.)Pettengill, John S. Labor Unions and the Inequality of Earned Income. North-Holland, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.