Neeraj Pratap Singh. (2004). Question bank on agriculture for competitive exams. International book distributors.
Chicago Style aipamenaNeeraj Pratap Singh. Question Bank on Agriculture for Competitive Exams. Lucknow: International book distributors, 2004.
MLA aipamenaNeeraj Pratap Singh. Question Bank on Agriculture for Competitive Exams. International book distributors, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.