APA-čujuhus (7. p.)

Various; Bates, H. Astounding Stories of Super-Science, August 1930.

Chicago-čujuhus (17. p.)

Various; Bates, Harry. Astounding Stories of Super-Science, August 1930.

MLA-čujuhus (9. p.)

Various; Bates, Harry. Astounding Stories of Super-Science, August 1930.

Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.