APA (7e ed.) Bronvermelding

HARKNESS, S. P. (1976). Building Without Barries For The Disable Sarah P. Harkness And Jmaes N. Groom. Watson-Guptill.

Chicago (17e ed.) Bronvermelding

HARKNESS, Sarah P. Building Without Barries For The Disable Sarah P. Harkness And Jmaes N. Groom. Watson-Guptill, 1976.

MLA (8e ed.) Bronvermelding

HARKNESS, Sarah P. Building Without Barries For The Disable Sarah P. Harkness And Jmaes N. Groom. Watson-Guptill, 1976.

Let op: Deze citaties zijn niet altijd 100% accuraat.