MLA

Valckenier, Pieter, 1638-1712. The Sieur P. Valkenier his speech : envoy extraordinary of the States General of the Vnited Provinces : at a full assembly of the deputies of the ... cantons of Switzerland at Baden : concerning the Swisses forces that are still in the French service .... 1691]. https://collections.library.yale.edu/catalog/2021815.

APA, 6th edition

Valckenier, Pieter, 1638-1712. (1691])[The Sieur P. Valkenier his speech : envoy extraordinary of the States General of the Vnited Provinces : at a full assembly of the deputies of the ... cantons of Switzerland at Baden : concerning the Swisses forces that are still in the French service ...]. https://collections.library.yale.edu/catalog/2021815.