Gaya APA

Ehrenberg, R, G., Smith, R, S. (2014). Modern labor economics : theory and public policy (Ed. 11). United States of America: Pearson.

Gaya MLA

Ehrenberg, Ronald, G.., Smith, Robert, S.. "Modern labor economics : theory and public policy". Ed. 11 United States of America: Pearson, 2014. Text.