Flesch, R. (1954). How to make sense. Harper & Brothers.
Chicago Style aipamenaFlesch, Rudolf. How to Make Sense. Newyork: Harper & Brothers, 1954.
MLA aipamenaFlesch, Rudolf. How to Make Sense. Harper & Brothers, 1954.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.