Description
Published:55th ed. (1950)-107th ed. (2002)
Item Description:Imprint varies: Tonbridge, Kent : Benn, <1992>-1994; M-G Information Services, 1995; Miller Freeman, 1996-<2000>; CMP, <2002>
Physical Description:volumes : illustrations ; 19 cm.
Publication Frequency:Annual.
ISSN:0075-5400
Action Note:committed to retain
Numbering Peculiarities Note:Some vols. issued in 2 parts.
Vols. for 1950-51 issued together.