Description
Published:Began with Vol. 6, no. 6 (July/Aug. 1972).
Item Description:Cover title.
Description based on: [Volume 12, number 10] (Dec. 1978-Jan. 1979).
Microform.
Physical Description:volumes : illustrations (some color) ; 28 cm.
Publication Frequency:Monthly (except combined issues July/Aug. and Dec./Jan.)
ISSN:0362-1332