A strange piece of paper...

Hi!

I needed to document this... I had bought a book from the used book store the other day (the one in the library) and I found a piece of paper inside. This are sometimes the most fun part of the book to look at. Here it is..

The back of the paper had just one word on it "Nashtuku". I looked closer at the page, parts of it were in french, a poem- Il pleure dans mon coeur. I recognized that much. The lines inbetween, I didn't recognize. Looking closer, they looked like they corrosponded to the french ones. I transcribed them here

telijicha'itsijandu 'aki'etiskarutsichali'osi
dagakeli 'aki'etithanaskarutsichali'osi
keje'itsijandumeshu ontapenane'ina'u
'ontapenane'ina'u
ka thanawesa
'erekokada'ogethachi'ina 'eguskoda'ogethachi'ina
ke'eji'itsi'askagume
ka thanawesa
'aki'etibetsithanaskarutsechali
telike'eji'itsi'askagume
pena'e!? kebaki'ob'iwe 'obesha'o?
bamishabetsi'e
meshaska'e
kesina'akijabechakisha
wupegaskabecha'e'ont webegaskabecha'e'ont
'i'untaje'itsijandu'achiskagume

What was I to make of this strange gibberish? How to decypher it?