Regional Conference of the North-West Europe Committee, 9a. (1972). Environmental education in an urban society. IUCN.
Cita Chicago Style (17a ed.)Regional Conference of the North-West Europe Committee, 9a. Environmental Education in an Urban Society. Morges: IUCN, 1972.
Cita MLA (9a ed.)Regional Conference of the North-West Europe Committee, 9a. Environmental Education in an Urban Society. IUCN, 1972.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.