Horne, R. L., & Picard, R. S. (1979). Psychosocial risk factors for lung cancer. [s.n.].
Chicago Style (17th ed.) CitationHorne, R. L., and R. S. Picard. Psychosocial Risk Factors for Lung Cancer. [S.l.]: [s.n.], 1979.
MLA (9th ed.) CitationHorne, R. L., and R. S. Picard. Psychosocial Risk Factors for Lung Cancer. [s.n.], 1979.
Warning: These citations may not always be 100% accurate.