APA
(1979). International Congress on Rizal 4-8 Dec. 1961. Manila: Nationa Historical Institute.
Chicago
1979. International Congress on Rizal 4-8 Dec. 1961. Manila: Nationa Historical Institute.
Harvard
(1979). International Congress on Rizal 4-8 Dec. 1961. Manila: Nationa Historical Institute.
MLA
International Congress on Rizal 4-8 Dec. 1961. Manila: Nationa Historical Institute. 1979.
