APA
Smart G., Anderson M. & Countryside Commission. (1990). Planning and management of areas of outstanding natural beauty. Cheltenham: Countryside Commission.
Chicago
Smart Gerald, Anderson Margaret and Countryside Commission. 1990. Planning and management of areas of outstanding natural beauty. Cheltenham: Countryside Commission.
Harvard
Smart G., Anderson M. and Countryside Commission. (1990). Planning and management of areas of outstanding natural beauty. Cheltenham: Countryside Commission.
MLA
Smart Gerald, Anderson Margaret and Countryside Commission. Planning and management of areas of outstanding natural beauty. Cheltenham: Countryside Commission. 1990.