Dennis, H. (1981). Water and power: The Peripheral Canal and its alternatives. Friends of the Earth.
Citazione stile Chigago Style (17a edizione)Dennis, Harry. Water and Power: The Peripheral Canal and Its Alternatives. San Francisco: Friends of the Earth, 1981.
Citatione MLA (8a ed.)Dennis, Harry. Water and Power: The Peripheral Canal and Its Alternatives. Friends of the Earth, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.