Smith, R. National parks of Britain: Dartmoor, Exmoor, New Forest, The Broads, Peak District, Yorkshire Dales, North York Moors, Lake District, Northumberland, Pembrokeshire Coast, Brecon Beacons, Snowdonia, Loch Lomond and the Trossachs, Cairngorms.
Style de citation Chicago (17e éd.)Smith, Roland. National Parks of Britain: Dartmoor, Exmoor, New Forest, The Broads, Peak District, Yorkshire Dales, North York Moors, Lake District, Northumberland, Pembrokeshire Coast, Brecon Beacons, Snowdonia, Loch Lomond and the Trossachs, Cairngorms. Basingstoke : Automobile Association, 2008.
Style de citation MLA (9e éd.)Smith, Roland. National Parks of Britain: Dartmoor, Exmoor, New Forest, The Broads, Peak District, Yorkshire Dales, North York Moors, Lake District, Northumberland, Pembrokeshire Coast, Brecon Beacons, Snowdonia, Loch Lomond and the Trossachs, Cairngorms.