APA aipamena

Purkin, J. (1970). Preface to Wordsworth. Longman.

Chicago Style aipamena

Purkin, John. Preface to Wordsworth. London: Longman, 1970.

MLA aipamena

Purkin, John. Preface to Wordsworth. Longman, 1970.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.