* For Sale by Superintendent of Documents. Paper, $1.00 a yr., 30c. additional for foreign mailing; single copy, 25c. • Sent to Depository Libraries. Item 612-B
Notes:
Apr. and July 1956; v. 18, no. 2 and 3. [1956.] cover titles, p. [49-] 144, il. 4°
Availability:
* For Sale by Superintendent of Documents. Paper, $1.00 a yr., 30c. additional for foreign mailing; single copy, 25c. • Sent to Depository Libraries. Item 612-B