Dyfyniad APA

Silver, R. (1977). Parental behaviour in birds. DowdonHutchinson.

Dyfyniad Arddull Chicago

Silver, Rae. Parental Behaviour in Birds. Pennsylvania: DowdonHutchinson, 1977.

Dyfyniad MLA

Silver, Rae. Parental Behaviour in Birds. DowdonHutchinson, 1977.

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