Não informado. (1967). Health consequences of smoking. Health Services and Mental Health Administration.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Health Consequences of Smoking. Washington: Health Services and Mental Health Administration, 1967.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Health Consequences of Smoking. Health Services and Mental Health Administration, 1967.
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