APA (7th ed.) Citation

Loper, S. W., Walcott, C. D., & Archives, S. I. (1900). Notes from Cape Breton, Nova Scotia, 1900. 1900.

Chicago Style (17th ed.) Citation

Loper, Samuel Ward, Charles D. Walcott, and Smithsonian Institution Archives. Notes from Cape Breton, Nova Scotia, 1900. 1900, 1900.

MLA (8th ed.) Citation

Loper, Samuel Ward, et al. Notes from Cape Breton, Nova Scotia, 1900. 1900, 1900.