Dr. Franklyn M. Branley. (1988). Tornado Alert (Let's-Read-and-Find-Out Science 2) (1.). HarperCollins.
Chicago-čujuhus (17. p.)Dr. Franklyn M. Branley. Tornado Alert (Let's-Read-and-Find-Out Science 2). 1. HarperCollins, 1988.
MLA-čujuhus (9. p.)Dr. Franklyn M. Branley. Tornado Alert (Let's-Read-and-Find-Out Science 2). 1. HarperCollins, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.