Description
Published:Began with v. 1 (1957)
Physical Description:volumes : illustrations, plates, maps (some folded) diagrams ; 25 cm
Publication Frequency:Twice a year, 2016-
ISSN:0076-6097
Finding Aid:Vols. 1 (1957)-5 (1961). 1 v.; vols. 6 (1962)-10 (1966). 1 v.; vols. 11 (1967)-15 (1971). 1 v.; vols. 16 (1972)-20 (1976). 1 v.; vols. 21 (1977)-25 (1981). 1 v.; vols. 26 (1982)-30 (1986). 1 v.; vols. 31 (1987)-35 (1991). 1 v.; vols. 36 (1992)-40 (1996). 1 v.; vols. 41 (1997)-45 (2001). 1 v.; vols. 46 (2002)-50 (2006). 1 v