Description
Published:Vol. 1, no. 1 (Jan./Mar. 1947)-v. 41 (Dec. 1988).
Item Description:Evans' description based on: Volume 2, number 4 published in 1948; title from cover.
Physical Description:41 volumes : illustrations, maps. ; 23-28 cm.
Publication Frequency:Annual, v. 5 (1952)-