APA (7th ed.) Citation

Powys, P., & Powys, G. M. (1900). Some poems. Sid Vale Press.

Chicago Style (17th ed.) Citation

Powys, Philippa, and Gertrude M. Powys. Some Poems. Sidmouth, England: Sid Vale Press, 1900.

MLA (9th ed.) Citation

Powys, Philippa, and Gertrude M. Powys. Some Poems. Sid Vale Press, 1900.