Phillips, Mark Edward. Extended Date/Time Format (EDTF) Dates Research Datasets. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc172363/. Accessed January 16, 2017.
Note: Inconsistencies in capitalization and punctuation within the Digital Library may affect this citation. Before using this citation in formal writing, please consult your preferred style manual. More information.