TY - BOOK TI - Stock market trading systems AU - Appel, Gerald. AU - Hitschler, W. Frederick, joint author. SN - 087094195X PB - Dow Jones-Irwin PP - Homewood, Ill. : Dow Jones-Irwin, c1980. PY - 1980 UR - https://library.korea.ac.kr/detail/?cid=CAT000000409065&ctype=m