Àwòko rẹ̀ tó kọ́ ní ọdún 1970, The ìṣe Theory of Colo-contation and Racism (White SupreCY), jẹ́ ìwé tó ṣe pàtàkì nípa ìtumọ̀ ìwà ìojusajú àwọn àalámọ̀.Awon ìtọ́kasíàwọn ìkọwe ara Ameriseewon Aat ará Améka ará Afrika AMẸ́RÍKÀ.. 