APA (7th ed.) Citation

Schaus, W., & Clements, W. G. (1893). On a collection of Sierra Leone lepidoptera. R.H. Porter.

Chicago Style (17th ed.) Citation

Schaus, William, and W. G. Clements. On a Collection of Sierra Leone Lepidoptera. London: R.H. Porter, 1893.

MLA (9th ed.) Citation

Schaus, William, and W. G. Clements. On a Collection of Sierra Leone Lepidoptera. R.H. Porter, 1893.