Gaya APA

A., C, R, M, S, L, B, &, D. (2019). Contemporary Labor Economics (Edisi Keenam). : Mc Graw Hill.

Gaya MLA

A., Campbell, R., McConnell,, Stanley, L., Brue,, &, David. "Contemporary Labor Economics". Edisi Keenam : Mc Graw Hill, 2019. Text.