Citazione Stile APA (7a Edizione)

Halnan, E. T., & Hammond, J. (1950). A course of practical physiology for agricultural students (2nd ed.). University Press.

Citazione stile Chigago Style (17a edizione)

Halnan, Edward Thomas, e John Hammond. A Course of Practical Physiology for Agricultural Students. 2nd ed. Cambridge: University Press, 1950.

Citatione MLA (8a ed.)

Halnan, Edward Thomas, e John Hammond. A Course of Practical Physiology for Agricultural Students. 2nd ed. University Press, 1950.