APA (7th ed.) Citation

Powys, C. G., & Marks, S. P. (2012). The journals of Caroline Powys. Stephen Powys Marks.

Chicago Style (17th ed.) Citation

Powys, Caroline Girle, and Stephen Powys Marks. The Journals of Caroline Powys. Bath: Stephen Powys Marks, 2012.

MLA (9th ed.) Citation

Powys, Caroline Girle, and Stephen Powys Marks. The Journals of Caroline Powys. Stephen Powys Marks, 2012.