APA (7e ed.) Bronvermelding
Walker, L. (2010). Choosing a sustainable future: Ideas and inspiration from Ithaca, NY. New Society Publishers.
Chicago (17e ed.) Bronvermelding
Walker, Liz. Choosing a Sustainable Future: Ideas and Inspiration from Ithaca, NY. Gabriola Island, BC: New Society Publishers, 2010.
MLA (9e ed.) Bronvermelding
Walker, Liz. Choosing a Sustainable Future: Ideas and Inspiration from Ithaca, NY. New Society Publishers, 2010.
Let op: Deze citaties zijn niet altijd 100% accuraat.