Purkis, J. (1970). Preface to Wordsworth. Longman.
Chicago Style aipamenaPurkis, John. Preface to Wordsworth. Longman, 1970.
MLA aipamenaPurkis, John. Preface to Wordsworth. Longman, 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena