Humidite is a French-language paperback work by M. Matana, issued in 2001 by Alternatives and identified by valid ISBN-10 and ISBN-13 numbers. The available record supplies no plot summary, abstract, review text, or subject headings, so the work is best described from verified bibliographic evidence alone. It appears to be a standalone title rather than a periodical item or report, and no related duplicate work records were found in the supplied candidate list. The title's French spelling suggests a Francophone publishing context, but that should not be treated as a subject classification without further evidence. Until additional edition details or publisher information can be reviewed, the safest catalog treatment is to retain it as a minimally documented book while leaving genre and subject classification open.