APA

Kalker J., Cannon D. & Orringer O. (1993). Rail quality and maintenance for modern railway operation. International conference held in Delft, June 1992. Proceedings. Dordrecht: Kluwer Academic Publishers.

Chicago

Kalker JJ, Cannon DF and Orringer O. 1993. Rail quality and maintenance for modern railway operation. International conference held in Delft, June 1992. Proceedings. Dordrecht: Kluwer Academic Publishers.

Harvard

Kalker J., Cannon D. and Orringer O. (1993). Rail quality and maintenance for modern railway operation. International conference held in Delft, June 1992. Proceedings. Dordrecht: Kluwer Academic Publishers.

MLA

Kalker JJ, Cannon DF and Orringer O. Rail quality and maintenance for modern railway operation. International conference held in Delft, June 1992. Proceedings. Dordrecht: Kluwer Academic Publishers. 1993.