Citação norma APA

Harmer, D., & Russell, B. (1931). The Treatment of Frontal Sinusitis by Intubation: An Analysis of Sixty-three Cases.

Citação norma Chicago

Harmer, Douglas, and Bedford Russell. The Treatment of Frontal Sinusitis By Intubation: An Analysis of Sixty-three Cases. 1931.

Citação norma MLA

Harmer, Douglas, and Bedford Russell. The Treatment of Frontal Sinusitis By Intubation: An Analysis of Sixty-three Cases. 1931.

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