Ambon Island Group / prepared under the direction of the Chief Engineer by Base Map Plant U.S. Army, November 1943 ; published by D[irectorate] Survey H[ead] Q[uarters] ALFSEA [=American Land Forces South East Asia]
Leiden UniversityDirectorate Survey Head Quarters American Land Forces South East Asia (ALFSEA)
1946
[S.l.] : D[irectorate] Survey H[ead] Q[uarters] ALFSEA [=American land Forces South East Asia]