(2015). 哲学原理：复印报刊资料．2015,no.11-12.
Chicago Style aipamena哲学原理：复印报刊资料．2015,no.11-12. 2015.
MLA aipamena哲学原理：复印报刊资料．2015,no.11-12. 2015.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(2015). 哲学原理：复印报刊资料．2015,no.11-12.
Chicago Style aipamena哲学原理：复印报刊资料．2015,no.11-12. 2015.
MLA aipamena哲学原理：复印报刊资料．2015,no.11-12. 2015.