003380a00a22001570004500020001800000245002400018250001100042100001700053260002500070260000900095300001100104082001400115306001700129760002300146015001100169  a0-7279-0768-9  aABC OF ONE TO SEVEN  a3rd ed  aValman,  H B  bBMJ Publishing Group  c1993  a144pgs  a613.95V24  aOne to Seven  bReference Cupboard  a002354