APA (7th ed.) Citation

Knowles, M. C., Phillipe, R. A., & Phillips, R. A. (1910). On the claim of the snowflake (leucojum aestivium) to be native in Ireland. With 3 plates.

Chicago Style (17th ed.) Citation

Knowles, M. C., R. A. Phillipe, and R. A. Phillips. On the Claim of the Snowflake (leucojum Aestivium) to Be Native in Ireland. With 3 Plates. 1910.

MLA (9th ed.) Citation

Knowles, M. C., et al. On the Claim of the Snowflake (leucojum Aestivium) to Be Native in Ireland. With 3 Plates. 1910.