Kaul,A.K. (2008). E-Libraries in 21st century. ABD Publishers.
Chicago Style aipamenaKaul,A.K. E-Libraries in 21st Century. Jaipur: ABD Publishers, 2008.
MLA aipamenaKaul,A.K. E-Libraries in 21st Century. ABD Publishers, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.