APA (7th ed.) Citation

Lang, A., Speed, L., & Ford, H. J. (1891). The blue poetry book. Longmans, Green and Co..

Chicago Style (17th ed.) Citation

Lang, Andrew, Lancelot Speed, and H. J. Ford. The Blue Poetry Book. London ; New York: Longmans, Green and Co., 1891.

MLA (9th ed.) Citation

Lang, Andrew, et al. The Blue Poetry Book. Longmans, Green and Co., 1891.