Downey, A. B. (2016). The Little Book of Semaphores. Green Tea Press.
Chicago-čujuhus (17. p.)Downey, Allen B. The Little Book of Semaphores. [Place of publication not identified]: Green Tea Press, 2016.
MLA-čujuhus (9. p.)Downey, Allen B. The Little Book of Semaphores. Green Tea Press, 2016.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.