Παραπομπή σε μορφή APA (7η εκδ.)

United States. Department of Health, Education, and Welfare. (1970). Air quality criteria for sulfur oxides. U.S. Department of Health, Education and Welfare.

Παραπομπή σε μορφή Chicago (17η εκδ.)

United States. Department of Health, Education, and Welfare. Air Quality Criteria for Sulfur Oxides. Washington: U.S. Department of Health, Education and Welfare, 1970.

Παραπομπή σε μορφή MLA (9th εκδ.)

United States. Department of Health, Education, and Welfare. Air Quality Criteria for Sulfur Oxides. U.S. Department of Health, Education and Welfare, 1970.