Ostrom, J. W. (1978). Better paragraphs. Harper & Row.
Chicago Style aipamenaOstrom, John Ward. Better Paragraphs. New York: Harper & Row, 1978.
MLA aipamenaOstrom, John Ward. Better Paragraphs. Harper & Row, 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.