Παραπομπή σε μορφή APA (7η εκδ.)

Horton, K., & Roche, C. (2010). Ethical Questions and International NGOs: An exchange between Philosophers and NGOs. Springer Science+Business Media B.V.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Horton, Keith, και Chris Roche. Ethical Questions and International NGOs: An Exchange Between Philosophers and NGOs. Dordrecht: Springer Science+Business Media B.V, 2010.

Παραπομπή σε μορφή MLA (8th εκδ.)

Horton, Keith, και Chris Roche. Ethical Questions and International NGOs: An Exchange Between Philosophers and NGOs. Springer Science+Business Media B.V, 2010.