Citação norma APA

Zayed, A. A., Shahait, A. D., Ayoub, M. N., & Yousef, A. (2013). Smokers’ hair: Does smoking cause premature hair graying? Medknow Publications & Media Pvt Ltd.

Citação norma Chicago

Zayed, Ayman A., Awni D. Shahait, Musa N. Ayoub, and Al-Motassem Yousef. Smokers’ Hair: Does Smoking Cause Premature Hair Graying? Medknow Publications & Media Pvt Ltd, 2013.

Citação norma MLA

Zayed, Ayman A., Awni D. Shahait, Musa N. Ayoub, and Al-Motassem Yousef. Smokers’ Hair: Does Smoking Cause Premature Hair Graying? Medknow Publications & Media Pvt Ltd, 2013.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.