GUPTA K L. (1994). BIOGRAPHY INTERNATIONAL. S.A.BIOGRAPHY.
Chicago Style aipamenaGUPTA K L. BIOGRAPHY INTERNATIONAL. NEW DELHI: S.A.BIOGRAPHY, 1994.
MLA aipamenaGUPTA K L. BIOGRAPHY INTERNATIONAL. S.A.BIOGRAPHY, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.