APA (7th ed.) Citation

Boas, F., König, H., & Speck, F. G. (1905). Inuit materials, Frank Siebert Papers.

Chicago Style (17th ed.) Citation

Boas, Franz, Herbert König, and Frank G. Speck. Inuit Materials, Frank Siebert Papers. 1905.

MLA (9th ed.) Citation

Boas, Franz, et al. Inuit Materials, Frank Siebert Papers. 1905.