Cita APA (7a ed.)
Huckle, J., & Sterling, S. Education for Sustainability. Earthscan.
Cita estilo Chicago (17a ed.)
Huckle, John, y Stephen Sterling. Education for Sustainability. Londres, Inglaterra: Earthscan.
Cita MLA (9a ed.)
Huckle, John, y Stephen Sterling. Education for Sustainability. Earthscan.
Precaución: Estas citas no son 100% exactas.