Dyfyniad APA

Feddersen, E., Lüdtke, I., & Braun, H. (2009). Living for the elderly: A design manual. Boston : Birkhäuser.

Dyfyniad Arddull Chicago

Feddersen, Eckhard, Insa Lüdtke, and Helmut Braun. Living for the Elderly: A Design Manual. Basel: Boston : Birkhäuser, 2009.

Dyfyniad MLA

Feddersen, Eckhard, et al. Living for the Elderly: A Design Manual. Boston : Birkhäuser, 2009.

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