Παραπομπή σε μορφή APA (7η εκδ.)

Zhang, G. (2016). Environmental and Social-economic Impacts of Sewage Sludge Treatment: The Evidence of Beijing. Springer Singapore : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Zhang, Guofeng. Environmental and Social-economic Impacts of Sewage Sludge Treatment: The Evidence of Beijing. Singapore: Springer Singapore : Imprint: Springer, 2016.

Παραπομπή σε μορφή MLA (8th εκδ.)

Zhang, Guofeng. Environmental and Social-economic Impacts of Sewage Sludge Treatment: The Evidence of Beijing. Springer Singapore : Imprint: Springer, 2016.