Παραπομπή APA

Small, J. (1946). PH and plants: An introduction to beginners. Bailliere, Tindall and Co.

Παραπομπή Chicago Style

Small, James. PH and Plants: An Introduction to Beginners. London: Bailliere, Tindall and Co, 1946.

Παραπομπή MLA

Small, James. PH and Plants: An Introduction to Beginners. Bailliere, Tindall and Co, 1946.