McCann, J. (1927). Self Discipline. London.
Chicago Style aipamenaMcCann, Justin. Self Discipline. London, 1927.
MLA aipamenaMcCann, Justin. Self Discipline. London, 1927.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
McCann, J. (1927). Self Discipline. London.
Chicago Style aipamenaMcCann, Justin. Self Discipline. London, 1927.
MLA aipamenaMcCann, Justin. Self Discipline. London, 1927.