APA aipamena

Wyndham J. John. (1963). Trouble with Lichen. London, Penguin Books, 1963.

Chicago Style aipamena

Wyndham J. John. Trouble with Lichen. London, Penguin Books, 1963, 1963.

MLA aipamena

Wyndham J. John. Trouble with Lichen. London, Penguin Books, 1963, 1963.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.