Kalam, A. A. P. J. (2012). Turning Points. The Belknap Press of Harvard University Pres.
Chicago Style aipamenaKalam, Abdul A P J. Turning Points. Cambridge: The Belknap Press of Harvard University Pres, 2012.
MLA aipamenaKalam, Abdul A P J. Turning Points. The Belknap Press of Harvard University Pres, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.