Estelle Freedman, No Turning Back: The History of Feminism and the Future of Women
The NTB website has links to both primary source documents and contemporary oprganizations and resources for Chapter 4: "Race and the Politics of Identity in US Feminism."
Some documents mentioned in Chapter 4:
The Hayden-King memo
The Woman-Identified Woman
Also possibly of interest
Linda MartÃn Alcoff
What Should White People Do?