Otto, J. D. T. (1957). The dyke rocks of Cape St. Martin. [University of Stellenbosch].
Lua i Stíl Chicago (17ú heag.)Otto, J. D. T. The Dyke Rocks of Cape St. Martin. Stellenbosch: [University of Stellenbosch], 1957.
Lua MLA (8ú heag.)Otto, J. D. T. The Dyke Rocks of Cape St. Martin. [University of Stellenbosch], 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.