UNDERSTANDING AMERICAN GOVERNMENT THIRD EDITION
SUSAN WELCH JOHN GRUHL MICHAEL STEINMAN JOHN GOMER MARGERY M.AMBROSIUS SUSAN M.RIGDON1995 年出版577 页ISBN:0314045783
UNDERSTANDING SUPREME COURT OPINIONS SECOND EDITION
T.R.VAN GEEL1997 年出版155 页ISBN:080131741X