Buehrig, E. B., & Morris, E. W. (1970). The role and contributions of American Negroes in the history of the United States and of Illinois: A guide for teachers and curriculum planners, K-12. [Springfield?: Office of the Supt. of Public Instruction.

Buehrig, Eleanor B., and Earl W. Morris. The Role and Contributions of American Negroes in the History of the United States and of Illinois: A Guide for Teachers and Curriculum Planners, K-12. [Springfield?: Office of the Supt. of Public Instruction, 1970.

Buehrig, Eleanor B., and Earl W. Morris. The Role and Contributions of American Negroes in the History of the United States and of Illinois: A Guide for Teachers and Curriculum Planners, K-12. [Springfield?: Office of the Supt. of Public Instruction, 1970.