Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.