MLA

Melber, Johannes, 15th cent. [Vocabularius praedicantium, sive, Variloquus]. anno Domi[ni] 1400 octuagesimo t[er]cio, 18 die me[n]sis Augusti [1483]. https://collections.library.yale.edu/catalog/16189394.

APA, 6th edition

Melber, Johannes, 15th cent. (anno Domi[ni] 1400 octuagesimo t[er]cio, 18 die me[n]sis Augusti [1483])[[Vocabularius praedicantium, sive, Variloquus]]. https://collections.library.yale.edu/catalog/16189394.