APA (7th ed.) Citation

Smith, E. K., Blackwood, E. J., & Johnston, R. M. (1917). To Mexico with Scott: Letters of Captain E. Kirby Smith to his wife. Harvard University Press; [etc., etc.].

Chicago Style (17th ed.) Citation

Smith, E. Kirby, Emma Jerome Blackwood, and R. M. Johnston. To Mexico with Scott: Letters of Captain E. Kirby Smith to His Wife. Cambridge: Harvard University Press; [etc., etc.], 1917.

MLA (9th ed.) Citation

Smith, E. Kirby, et al. To Mexico with Scott: Letters of Captain E. Kirby Smith to His Wife. Harvard University Press; [etc., etc.], 1917.