Hamilton, R. (1990). Earthdream: The marriage of reason and intuition. Green Books.
Citazione stile Chigago Style (17a edizione)Hamilton, Robert. Earthdream: The Marriage of Reason and Intuition. Bideford: Green Books, 1990.
Citatione MLA (9a ed.)Hamilton, Robert. Earthdream: The Marriage of Reason and Intuition. Green Books, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.