APA aipamena

Seagull Bobby. (2019). Life-Changing Magic of Numbers. Penguin Random House, Virgin Book UK.

Chicago Style aipamena

Seagull Bobby. Life-Changing Magic of Numbers. London: Penguin Random House, Virgin Book UK, 2019.

MLA aipamena

Seagull Bobby. Life-Changing Magic of Numbers. Penguin Random House, Virgin Book UK, 2019.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.