Dyfyniad APA

Jovanovic, B., & Nyarko, Y. (1996). Stepping stone mobility. National Bureau of Economic Research.

Dyfyniad Arddull Chicago

Jovanovic, Boyan, and Yaw Nyarko. Stepping Stone Mobility. Cambridge: National Bureau of Economic Research, 1996.

Dyfyniad MLA

Jovanovic, Boyan, and Yaw Nyarko. Stepping Stone Mobility. National Bureau of Economic Research, 1996.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.