Dyfyniad APA

Xie, Y., & Killewald, A. A. (2012). Is American science in decline? Harvard University Press.

Dyfyniad Arddull Chicago

Xie, Yu, and Alexandra A. Killewald. Is American Science in Decline? Cambridge, Mass.: Harvard University Press, 2012.

Dyfyniad MLA

Xie, Yu, and Alexandra A. Killewald. Is American Science in Decline? Harvard University Press, 2012.

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