00409nam a2200145Ia 450000500170000000800410001703700130005804000200007104100130009108400190010410000170012324500850014026000290022530000090025420250326125211.0250326s9999    xx            000 0 und d  aTextbook  aFMSLbengcFMSL  aeng2eng  aX3:8M L0qFMSL  aVardaman G T 0aCutting communications costs and increasing impactscVardaman G T; Halterman C C  aNYbNY, John Wileyc1970  a281p