RT Journal Article SR Electronic T1 The use of an addressography system in general practice. JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 639 OP 642 VO 22 IS 122 A1 E. R. Blay YR 1972 UL http://bjgp.org/content/22/122/639.abstract AB