Description
Published:Vol. 85, no. 6 (June 1993)-v. 86, no. 1 (Jan. 1994).
Item Description:Title from cover.
Physical Description:volumes : illustrations ; 29 cm.
Publication Frequency:Monthly (except bimonthly in July/Aug. and Nov./Dec.)
ISSN:1071-9628
0008-1329
1070-4914
1071-4790
1070-4469
1071-4804
1070-6100