Παραπομπή σε μορφή APA (7η εκδ.)

Booth, P. (1991). Certainty flexibility and delay in the development control process: Some comparisons. Department of Town and Regional Planning, University of Sheffield.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Booth, Philip. Certainty Flexibility and Delay in the Development Control Process: Some Comparisons. Sheffield: Department of Town and Regional Planning, University of Sheffield, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

Booth, Philip. Certainty Flexibility and Delay in the Development Control Process: Some Comparisons. Department of Town and Regional Planning, University of Sheffield, 1991.