Carroll Roopam. Sammy The Snail. National Book Trust.
Chicago-čujuhus (17. p.)Carroll Roopam. Sammy The Snail. 2012 2012: National Book Trust.
MLA-čujuhus (9. p.)Carroll Roopam. Sammy The Snail. National Book Trust.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.