Cite

Topographical map of Toaroha survey district / compiled and drawn by O. A. Darby.

MLA

Darby, O. A. Topographical Map of Toaroha Survey District / Compiled and Drawn by O. A. Darby. N.Z. Geological Survey, 1907. https://collections.library.yale.edu/catalog/15824520.

APA, 6th edition

Darby, O. A. (1907). Topographical map of Toaroha survey district / compiled and drawn by O. A. Darby. [Topographic maps]. N.Z. Geological Survey, https://collections.library.yale.edu/catalog/15824520.