Citação norma APA

Clark, S. L., & Ryall, R. W. (1983). The antinociceptive action of etorphine in the dorsal horn is due to a direct spinal action and not to activation of descending inhibition. Nature Publishing Group.

Citação norma Chicago

Clark, S. L., and R. W. Ryall. The Antinociceptive Action of Etorphine in the Dorsal Horn Is Due to a Direct Spinal Action and Not to Activation of Descending Inhibition. Nature Publishing Group, 1983.

Citação norma MLA

Clark, S. L., and R. W. Ryall. The Antinociceptive Action of Etorphine in the Dorsal Horn Is Due to a Direct Spinal Action and Not to Activation of Descending Inhibition. Nature Publishing Group, 1983.

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