(Simplified practice recommendation R89-46.) [Effective date, May 15, 1946. Supersedes R89-40.]
Notes:
(Simplified practice recommendation R89-46.) [Effective date, May 15, 1946. Supersedes R89-40.] * For Sale by Superintendent of Documents. Paper, 10c. • Sent to Depository Libraries. Item 280
Availability:
* For Sale by Superintendent of Documents. Paper, 10c. • Sent to Depository Libraries. Item 280