Milano : North L. 32. / compiled at the Royal Geographical Society under the direction of the Geographical Section; drawn and printed by Ordnance Survey.
MLA
Ordnance Survey of Great Britain and Ireland, Royal Geographical Society (Great Britain). Geographical Section. Milano : North L. 32. / compiled at the Royal Geographical Society under the direction of the Geographical Section; drawn and printed by Ordnance Survey.. [1914?]. https://collections.library.yale.edu/catalog/15238265.
APA, 6th edition
Ordnance Survey of Great Britain and Ireland, & Royal Geographical Society (Great Britain). Geographical Section. ([1914?])[Milano : North L. 32. / compiled at the Royal Geographical Society under the direction of the Geographical Section; drawn and printed by Ordnance Survey.]. https://collections.library.yale.edu/catalog/15238265.
