MLA

Keulen, Gerard va, Keulen, Johannes van, Marre, Jan de, 1696-1763, Vooght, Claes Janszoon, d. 1696. Madagascar. https://collections.library.yale.edu/catalog/2018816.

APA, 6th edition

Keulen, Gerard va, & Keulen, Johannes van, & Marre, Jan de, 1696-1763, & Vooght, Claes Janszoon, d. 1696. [Madagascar]. https://collections.library.yale.edu/catalog/2018816.