Παραπομπή APA

National parks and access to the countryside. London: His Majesty's Stationery Office.

Παραπομπή Chicago Style

National Parks and Access to the Countryside. London: His Majesty's Stationery Office.

Παραπομπή MLA

National Parks and Access to the Countryside. London: His Majesty's Stationery Office.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.