APA (7th ed.) Citation

Schwenk, W., & Schwenk, R. (1998). Aspects of international cooperation in air traffic management. Nijhoff.

Chicago Style (17th ed.) Citation

Schwenk, Walter, and Rüdiger Schwenk. Aspects of International Cooperation in Air Traffic Management. <<The>> Hague [u.a.]: Nijhoff, 1998.

MLA (9th ed.) Citation

Schwenk, Walter, and Rüdiger Schwenk. Aspects of International Cooperation in Air Traffic Management. Nijhoff, 1998.