Dyfyniad APA

De Propris, R., Colless, M., Peacock, J., Couch, W., Driver, S., Balogh, M., . . . Maddox, S. (2004). The 2dF Galaxy Redshift Survey: The blue galaxy fraction and implications for the Butcher-Oemler effect.

Dyfyniad Arddull Chicago

De Propris, R., et al. The 2dF Galaxy Redshift Survey: The Blue Galaxy Fraction and Implications for the Butcher-Oemler Effect. 2004.

Dyfyniad MLA

De Propris, R., et al. The 2dF Galaxy Redshift Survey: The Blue Galaxy Fraction and Implications for the Butcher-Oemler Effect. 2004.

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