एपीए उद्धरण

Halpern, M., Shikiar, R., Rentz, A., & Khan, Z. (2001). Impact of smoking status on workplace absenteeism and productivity. BMJ Group.

शिकागो स्टाइल उद्धरण

Halpern, M., R. Shikiar, A. Rentz, और Z. Khan. Impact of Smoking Status On Workplace Absenteeism and Productivity. BMJ Group, 2001.

एमएलए उद्धरण

Halpern, M., R. Shikiar, A. Rentz, और Z. Khan. Impact of Smoking Status On Workplace Absenteeism and Productivity. BMJ Group, 2001.