Le Pelerinage de vie humaine, etc.
MLA
Guillaume, de Deguileville, 14th cent, Ruysbroeck, Willem van, ca. 1210-ca. 127. Le Pelerinage de vie humaine, etc.. ca. 1400. https://collections.library.yale.edu/catalog/2013558.
APA, 6th edition
Guillaume, de Deguileville, 14th cent, & Ruysbroeck, Willem van, ca. 1210-ca. 127. (ca. 1400)[Le Pelerinage de vie humaine, etc.]. https://collections.library.yale.edu/catalog/2013558.