APA (7th ed.) Citation

Harley, G. W. (1941). Notes on the Poro in Liberia. The Museum.

Chicago Style (17th ed.) Citation

Harley, George W. Notes on the Poro in Liberia. Cambridge, Mass.: The Museum, 1941.

MLA (9th ed.) Citation

Harley, George W. Notes on the Poro in Liberia. The Museum, 1941.