Letters patent for Thomas de Greystoke
MLA
Richard II, King of England, 1367-1400. Letters patent for Thomas de Greystoke. 1393 February 27.. https://collections.library.yale.edu/catalog/16371206.
APA, 6th edition
Richard II, King of England, 1367-1400. (1393 February 27.)[Letters patent for Thomas de Greystoke]. https://collections.library.yale.edu/catalog/16371206.