Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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