Jha, D. (1989). Agricultural and regional planning. Mittal.
Cita Chicago (17th ed.)Jha, D.N. Agricultural and Regional Planning. Delhi: Mittal, 1989.
Cita MLA (9th ed.)Jha, D.N. Agricultural and Regional Planning. Mittal, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.