Beskrivning
Publicerad:Vol. 5 (1945-46)-
Beskrivning:Title from cover.
Published <1994-> at: Philadelphia, PA.
Fysisk beskrivning:volumes : illustrations, maps ; 28 cm
Also issued online.
Utgivningsfrekvens:Quarterly
ISSN:0037-9808
2150-5926
1544-9890
Sökhjälp:Vols. 1 (1941)-20 (1961) (includes index to earlier title). 1 v.