Wade, W., & Hughes, C. (1994). Inspirations for environmental education. Scholastic.
Citazione stile Chigago Style (17a edizione)Wade, Winnie, e Colin Hughes. Inspirations for Environmental Education. Warwickshire: Scholastic, 1994.
Citatione MLA (9a ed.)Wade, Winnie, e Colin Hughes. Inspirations for Environmental Education. Scholastic, 1994.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.