APA

Broekema C., . (1971). Maps of the Canary Islands published before 1850. London: The Map Collectors Circle.

Chicago

Broekema C, . 1971. Maps of the Canary Islands published before 1850. London: The Map Collectors Circle.

Harvard

Broekema C., . (1971). Maps of the Canary Islands published before 1850. London: The Map Collectors Circle.

MLA

Broekema C, . Maps of the Canary Islands published before 1850. London: The Map Collectors Circle. 1971.