Markham, New Guinea [cartographic material] /

1st ed. Topographic map of Markham, Papua New Guinea.; "This map is compiled from numerous plans and notes from various sources, and is not the result of Military Survey."; Netherlands East Indies Grid, Southern New Guinea zone.; Includes index to adjoining sheets and reliabilty diagram.; Also available in an electronic version via the internet at: http://nla.gov.au/nla.map-vn5078456.Refer to this map as: 4 mile strategical series N.G. Markham first editio