Zehetmayr, J. (1960). Afforestation of upland heaths. Her Majesty's Stationery Office.
Citazione stile Chigago Style (17a edizione)Zehetmayr, J.W.L. Afforestation of Upland Heaths. Edinburgh: Her Majesty's Stationery Office, 1960.
Citatione MLA (9a ed.)Zehetmayr, J.W.L. Afforestation of Upland Heaths. Her Majesty's Stationery Office, 1960.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.