Modern chairs.

MLA

Fiell, C, and P Fiell. Modern Chairs. Koeln: Benedikt Taschen Verlag GmbH, 1993.

APA

Fiell, C., & Fiell, P. (1993). Modern chairs. Koeln: Benedikt Taschen Verlag GmbH.

Chicago

Fiell, C., and P Fiell. Modern Chairs. Koeln: Benedikt Taschen Verlag GmbH, 1993.