APA (7th ed.) Citation

Campbell, J. M., & Openshaw, O. F. (1900). We plough the fields. The Challenge.

Chicago Style (17th ed.) Citation

Campbell, Jane M., and Olive F. Openshaw. We Plough the Fields. [London]: The Challenge, 1900.

MLA (9th ed.) Citation

Campbell, Jane M., and Olive F. Openshaw. We Plough the Fields. The Challenge, 1900.