Bihar (India). Forest Dept. Working Plans Division. Southern Circle & Sinha, J. N. (1961). Revised working plan for the forests of Porahat Division for the period 1953-54 to 196263. Printed by the Superintendent, Secretariat Press, Bihar.
Παραπομπή σε μορφή Chicago (17η εκδ.)Bihar (India). Forest Dept. Working Plans Division. Southern Circle και Jogendra Nath Sinha. Revised Working Plan for the Forests of Porahat Division for the Period 1953-54 to 196263. Patna: Printed by the Superintendent, Secretariat Press, Bihar, 1961.
Παραπομπή σε μορφή MLA (8th εκδ.)Bihar (India). Forest Dept. Working Plans Division. Southern Circle και Jogendra Nath Sinha. Revised Working Plan for the Forests of Porahat Division for the Period 1953-54 to 196263. Printed by the Superintendent, Secretariat Press, Bihar, 1961.