Παραπομπή σε μορφή APA (7η εκδ.)

Hufschmidt, M. M. (1983). Environment, natural systems, and development: An economic valuation guide. Johns Hopkins University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hufschmidt, Maynard M. Environment, Natural Systems, and Development: An Economic Valuation Guide. Baltimore: Johns Hopkins University Press, 1983.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hufschmidt, Maynard M. Environment, Natural Systems, and Development: An Economic Valuation Guide. Johns Hopkins University Press, 1983.