I may be wrong but I think that only the disk tools images are on the CD. If you need the floppy version of the install, you will have to get it from somewhere.

Apple had some system 7 installs on their website but apparently removed the page.

I suggest you read this https://68kmla.org/forums/index.php?/topic/24063-apple-older-software-downloads/ there are still some ways to get those file (but not for long I guess)