Παραπομπή σε μορφή APA (7η εκδ.)

Spash, C. L. (1996). Environmental management without environmental valuation? Department of Land Economy, University of Cambridge.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Spash, Clive L. Environmental Management Without Environmental Valuation? Cambridge: Department of Land Economy, University of Cambridge, 1996.

Παραπομπή σε μορφή MLA (9th εκδ.)

Spash, Clive L. Environmental Management Without Environmental Valuation? Department of Land Economy, University of Cambridge, 1996.