Collins, D. (1923). Sea-tracks of the Speejacks round the world. William Heinemann.
Lua i Stíl Chicago (17ú heag.)Collins, Dale. Sea-tracks of the Speejacks Round the World. London: William Heinemann, 1923.
Lua MLA (9ú heag.)Collins, Dale. Sea-tracks of the Speejacks Round the World. William Heinemann, 1923.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.