Works St Albans Press

^ british library - incunabula short title catalogue . istc.bl.uk. 2005-10-27. retrieved 2017-01-26. 
^ peter g. bietenholz; thomas brian deutscher (2003). contemporaries of erasmus: biographical register of renaissance , reformation. university of toronto press. p. 378. isbn 978-0-8020-8577-1. retrieved 19 april 2012. 
^ université catholique de louvain (1835-1969) (1995). humanistica lovaniensia. leuven university press. p. 146. isbn 978-90-6186-680-0. retrieved 19 april 2012. 
^ british library - incunabula short title catalogue . istc.bl.uk. 2005-10-27. retrieved 2017-01-26. 
^ [1]
^ edward grant (29 may 1981). ado nothing: theories of space , vacuum middle ages scientific revolution. cambridge university press. p. 291 note 78. isbn 978-0-521-22983-8. retrieved 19 april 2012. 
^ jacques (de vitry) (1890). exempla or illustrative stories sermones vulgares of jacques de vitry. ayer publishing. p. xcviii. isbn 978-0-8337-0715-4. retrieved 19 april 2012. 
^ chronicles of england . special.lib.gla.ac.uk. retrieved 2017-01-26. 
^ george d. painter, william caxton (1976), p. 188.