Cite

Plan of the harbour of St. Juan de Port o Rico

MLA

Gibson, J. (John). Plan of the harbour of St. Juan de Port o Rico. https://collections.library.yale.edu/catalog/2046911.

APA, 6th edition

Gibson, J. (John). [Plan of the harbour of St. Juan de Port o Rico]. https://collections.library.yale.edu/catalog/2046911.