National Historical Institute & Regional Seminar on History. (1975). Proceedings and position papers of the Regional Seminar on History. NHI.
Chicago-viite (17. p.)National Historical Institute ja Regional Seminar on History. Proceedings and Position Papers of the Regional Seminar on History. Manila: NHI, 1975.
MLA-viite (9. p.)National Historical Institute ja Regional Seminar on History. Proceedings and Position Papers of the Regional Seminar on History. NHI, 1975.
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