
1.		Postal Laws and Regulations of the United States of America : Revised and edited in accordance with the act of confress approved February 23, 1931 / Walter F. Brown ( Postmaster General) Autor: F. Brown, Walter Data Publicação: 1932

Postal Laws and Regulations of the United States of America : Revised and edited in accordance with the act of confress approved February 23, 1931 / Walter F. Brown ( Postmaster General)

Autor: F. Brown, Walter Data Publicação: 1932