Dr. Franklyn M. Branley. (1998). Floating in Space (Let's-Read-and-Find-Out Science 2). HarperCollins.
Chicago-čujuhus (17. p.)Dr. Franklyn M. Branley. Floating in Space (Let's-Read-and-Find-Out Science 2). HarperCollins, 1998.
MLA-čujuhus (9. p.)Dr. Franklyn M. Branley. Floating in Space (Let's-Read-and-Find-Out Science 2). HarperCollins, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.