Cite

Map of Siam and some of its tributary provinces / constructed from various late surveys, travels and observations by S.G. McFarland.

MLA

McFarland, S. G. Map of Siam and Some of Its Tributary Provinces / Constructed from Various Late Surveys, Travels and Observations by S.G. McFarland. s.n., 1870. https://collections.library.yale.edu/catalog/15511924.

APA, 6th edition

McFarland, S. G. (1870). Map of Siam and some of its tributary provinces / constructed from various late surveys, travels and observations by S.G. McFarland. [Maps]. s.n., https://collections.library.yale.edu/catalog/15511924.