Παραπομπή σε μορφή APA (7η εκδ.)

George, C., & Kirkpatrick, C. H. (2007). Impact assessment and sustainable development: European practice and experience. Edward Elgar.

Παραπομπή σε μορφή Chicago (17η εκδ.)

George, Clive, και C. H. Kirkpatrick. Impact Assessment and Sustainable Development: European Practice and Experience. Cheltenham, [England]: Edward Elgar, 2007.

Παραπομπή σε μορφή MLA (9th εκδ.)

George, Clive, και C. H. Kirkpatrick. Impact Assessment and Sustainable Development: European Practice and Experience. Edward Elgar, 2007.