Παραπομπή σε μορφή APA (7η εκδ.)

Milner, J. E. (1994). The green index: A directory of environmental organizations in Britain and Ireland (2nd ed.). Cassell.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Milner, J. Edward. The Green Index: A Directory of Environmental Organizations in Britain and Ireland. 2nd ed. London: Cassell, 1994.

Παραπομπή σε μορφή MLA (9th εκδ.)

Milner, J. Edward. The Green Index: A Directory of Environmental Organizations in Britain and Ireland. 2nd ed. Cassell, 1994.