APA

(1989). International studies in the service economy. Dordrecht [u.a.]: Kluwer.

Chicago

1989. International studies in the service economy. Dordrecht [u.a.]: Kluwer.

Harvard

(1989). International studies in the service economy. Dordrecht [u.a.]: Kluwer.

MLA

International studies in the service economy. Dordrecht [u.a.]: Kluwer. 1989.