Παραπομπή σε μορφή APA (7η εκδ.)

Janicke, M., Weidner, H., & Jorgens, H. (1997). National environmental policies: A comparative study of capacity - building: with a data appendix, international profiles of changesince 1970. Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Janicke, Martin, Helmut Weidner, και H. Jorgens. National Environmental Policies: A Comparative Study of Capacity - Building: With a Data Appendix, International Profiles of Changesince 1970. New York: Springer, 1997.

Παραπομπή σε μορφή MLA (8th εκδ.)

Janicke, Martin, et al. National Environmental Policies: A Comparative Study of Capacity - Building: With a Data Appendix, International Profiles of Changesince 1970. Springer, 1997.