OLD Version FM 7-8

Hope this is posted in the proper place. I've tried search and other search engines. I can't find FM 7-8 infantry platoon squad.
Am looking for the older version 1981 or maybe earlier? Any help? Links? Or send me the PDF? Thanks.

III

You wouldn't think it would be that hard to find, but I'm not having any luck either. I have the old mechanized infantry version, but it's not for sale.

Onward and upward,
airforce

Found it! Hope this is what you're looking for.

Onward and upward,
airforce