Ocampo, F. (1961). Academic freedom and freedom from subversion. s.n.].
芝加哥风格引文Ocampo, Felicisimo. Academic Freedom and Freedom from Subversion. [Quezon City: s.n.], 1961.
MLA引文Ocampo, Felicisimo. Academic Freedom and Freedom from Subversion. s.n.], 1961.
警告：这些引文格式不一定是100％准确.