"Constitutional revision in Pennsylvania : problems and procedures."; "Sidman, Robert."; "Constitutional law--Pennsylvania.", "Constitutional history--Pennsylvania."; "Sidman, Robert."; "1970"; "Journal article reprint from: West Virginia Law Review, v.72:no.1/2 (1969/1970:Dec./Feb.)"; ""; "P11022"; "pec"; "Constitutional law--Pennsylvania.", "Constitutional history--Pennsylvania."; "14256"; .