SINGH P N. (2001). LALAJI HRD KARENGE. P N SINGH CENTRE FOR HRD.
Chicago Style aipamenaSINGH P N. LALAJI HRD KARENGE. MUNBAI: P N SINGH CENTRE FOR HRD, 2001.
MLA aipamenaSINGH P N. LALAJI HRD KARENGE. P N SINGH CENTRE FOR HRD, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.