The Shanghai Postal System, The Stamps and Postal History by Charles W. Dougan. Illustrated handbook and catalog of the stamps and postal history with an emphasis on the local post stamps. 1981. Cloth covers. 214 pages. Used, VF
The MLO Book Northeast China's Control and Provincial Overprints by George T. Luzitano. Illustrated handbook and catalog of these overprints with color illustrations and scarcity guide. 2023. Comb bound. 190 pages. Used, VF