APA (7e ed.) Bronvermelding

Causa, O., & Cohen, D. (2006). The ladder of competitiveness: How to climb it. Development Centre of the Organisation for Economic Co-operation and Development.

Chicago (17e ed.) Bronvermelding

Causa, Orsetta, en Daniel Cohen. The Ladder of Competitiveness: How to Climb It. Paris: Development Centre of the Organisation for Economic Co-operation and Development, 2006.

MLA (9e ed.) Bronvermelding

Causa, Orsetta, en Daniel Cohen. The Ladder of Competitiveness: How to Climb It. Development Centre of the Organisation for Economic Co-operation and Development, 2006.