Cita APA (7th ed.)

Geaney, D., Soper, N., Shepstone, B., Goodwin, G., & Cowen, P. (1991). Intravenous L-tryptophan and regional cerebral blood flow.

Cita Chicago (17th ed.)

Geaney, D., N. Soper, B. Shepstone, G. Goodwin, i P. Cowen. Intravenous L-tryptophan and Regional Cerebral Blood Flow. 1991.

Cita MLA (9th ed.)

Geaney, D., et al. Intravenous L-tryptophan and Regional Cerebral Blood Flow. 1991.