@book{ia00049000, author = {Adelardus Bathoniensis}, title = {Quaestiones naturales}, year = {between 8 Apr. 1476 and Nov. 1477]}, note = {Reproductions of the watermarks found in the paper used in this edition are provided by the Koninklijke Bibliotheek, National Library of the Netherlands.}, publisher = {Johannes de Westfalia}, address = {[Louvain}, annote = { This record was exported from the Incunabula Short Title Catalogue (ISTC): http://data.cerl.org/istc/} } @book{ia00050000, author = {Adelardus Bathoniensis}, title = {Quaestiones naturales}, year = {about 1484-85]}, note = {Reproductions of the watermarks found in the paper used in this edition are provided by the Koninklijke Bibliotheek, National Library of the Netherlands.}, publisher = {Johannes de Westfalia}, address = {[Louvain}, annote = { This record was exported from the Incunabula Short Title Catalogue (ISTC): http://data.cerl.org/istc/} }