APA aipamena

makeham,JP, & malcolm,LR. (1993). Farming game now. Cambridge University Press.

Chicago Style aipamena

makeham,JP, and malcolm,LR. Farming Game Now. United Kingdom: Cambridge University Press, 1993.

MLA aipamena

makeham,JP, and malcolm,LR. Farming Game Now. Cambridge University Press, 1993.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.