Cita APA (7th ed.)

Thomson, J. W., & Scotter, G. W. (1985). Lichens of eastern Axel Heiberg Island and the Fosheim Peninsula, Ellesmere Island, Northwest Territories. Zenodo.

Cita Chicago (17th ed.)

Thomson, John Walter, i George W. Scotter. Lichens of Eastern Axel Heiberg Island and the Fosheim Peninsula, Ellesmere Island, Northwest Territories. Zenodo, 1985.

Cita MLA (9th ed.)

Thomson, John Walter, i George W. Scotter. Lichens of Eastern Axel Heiberg Island and the Fosheim Peninsula, Ellesmere Island, Northwest Territories. Zenodo, 1985.