Παραπομπή σε μορφή APA (7η εκδ.)

Pethig, R. (1994). Valuing the environment: Methodological and measurement issues. Kluwer Academic Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Pethig, Rudiger. Valuing the Environment: Methodological and Measurement Issues. Dordrecht: Kluwer Academic Publishers, 1994.

Παραπομπή σε μορφή MLA (8th εκδ.)

Pethig, Rudiger. Valuing the Environment: Methodological and Measurement Issues. Kluwer Academic Publishers, 1994.