APA-referens (7:e uppl.)

(2002). Implementing domestic treadable permits: Recent developments and future challenges. Organisation for Economic Co-operation and Development.

Chicago-referens (17:e uppl.)

Implementing Domestic Treadable Permits: Recent Developments and Future Challenges. Paris, Cedex, France: Organisation for Economic Co-operation and Development, 2002.

MLA-referens (9:e uppl.)

Implementing Domestic Treadable Permits: Recent Developments and Future Challenges. Organisation for Economic Co-operation and Development, 2002.