Dyfyniad APA

Sorenson, O. Zoltan J. Acs, Catherine Armington: Entrepreneurship, geography, American economic growth.

Dyfyniad Arddull Chicago

Sorenson, Olav. Zoltan J. Acs, Catherine Armington: Entrepreneurship, Geography, American Economic Growth.

Dyfyniad MLA

Sorenson, Olav. Zoltan J. Acs, Catherine Armington: Entrepreneurship, Geography, American Economic Growth.

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