ebrary, Inc, & Upham, P. (2003). Towards sustainable aviation. Earthscan Publications.
Citazione stile Chigago Style (17a edizione)ebrary, Inc, e Paul Upham. Towards Sustainable Aviation. London ; Sterling, VA: Earthscan Publications, 2003.
Citatione MLA (9a ed.)ebrary, Inc, e Paul Upham. Towards Sustainable Aviation. Earthscan Publications, 2003.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.