Johnson, L. S. (1990). Reading in the content areas. London: New Readers Press.
Chicago Style aipamenaJohnson, Laura Stark. Reading in the Content Areas. London: New Readers Press, 1990.
MLA aipamenaJohnson, Laura Stark. Reading in the Content Areas. London: New Readers Press, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.