Παραπομπή σε μορφή APA (7η εκδ.)

Duprey, R. L. (1968). Compilation of air pollutant emission factors. U. S. Department of Health, Education and Welfare.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Duprey, R. L. Compilation of Air Pollutant Emission Factors. North Carolina: U. S. Department of Health, Education and Welfare, 1968.

Παραπομπή σε μορφή MLA (9th εκδ.)

Duprey, R. L. Compilation of Air Pollutant Emission Factors. U. S. Department of Health, Education and Welfare, 1968.