Stein, Robert (June 1981). "Reviewed Work State Income Taxation. By Clara Penniman. (Baltimore: Johns Hopkins University Press, 1980. Pp. xiii + 292. $22.50.)". American Political Science Review. 75 (2): 504–505. doi:10.2307/1961415. JSTOR1961415.
Burkhead, Jesse (September 1960). "Book Review Slate Income Tax Administration. By Clara Penniman and Walter W. Heller (Chicago: Public Administration Service, 1959, Pp. xiii, 280. $7.50)". American Political Science Review. 54 (3): 768–769. doi:10.1017/S000305540027932X.
jstor.org
Stein, Robert (June 1981). "Reviewed Work State Income Taxation. By Clara Penniman. (Baltimore: Johns Hopkins University Press, 1980. Pp. xiii + 292. $22.50.)". American Political Science Review. 75 (2): 504–505. doi:10.2307/1961415. JSTOR1961415.