Dyfyniad APA

van Dick, R., Pettigrew, T. F., Wolf, C., Smith Castro, V., Wagner, U., Christ, O., . . . Jackson, J. S. (2004). Role of Perceived Importance in Intergroup Contact.

Dyfyniad Arddull Chicago

van Dick, Rolf, Thomas F. Pettigrew, Carina Wolf, Vanessa Smith Castro, Ulrich Wagner, Oliver Christ, Thomas Petzel, y James S. Jackson. Role of Perceived Importance in Intergroup Contact. 2004.

Dyfyniad MLA

van Dick, Rolf, et al. Role of Perceived Importance in Intergroup Contact. 2004.

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