The poem "Reply to Comrade Guo Moruo -- to the tune of Man Jiang Hong" was written by Mao Zedong on 9 January 1963. The English version, including the 1962 poem by Guo Moruo to which Mao responded, can be found here. An annotated Chinese version can be found here.
滿江紅 -- 和郭沫若同志
Lingnan meishu chubanshe (岭南美术出版社)