Haarman, L., Leech, P., & Murray, J. (1993). Reading skills for the social sciences (2a. ed.). Oxford University Press.
Chicago Style (17th ed.) ZitazioaHaarman, Louann, Patrick Leech, eta Janet Murray. Reading Skills for the Social Sciences. 2a. ed. Oxford: Oxford University Press, 1993.
MLA (9th ed.) ZitazioaHaarman, Louann, et al. Reading Skills for the Social Sciences. 2a. ed. Oxford University Press, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.