Decoration Abrevations on DD214

Hello,
I'm new to this site and I'm trying to build my military signature.
I was in the Air Force from '69-'72, and it's been a while sense I've thought about decorations and ribbons.
I was looking at my DD214, and can figure out some of the abreviations, and was wondering if anyone could help me.
Here is what I have;
NDSM
RVCM
VSM W/ 1BSS - I'm pretty sure that's the Vietnam Service Medal
AFGCM - Air Force Good Conduct Medal
AFM 900-3

If anyone can help me decypher this, it would be greatly appreciated

Thanks,
Rick

These are the abbreviations. Please be advised these are to the best of my knowledge after some quick research, and may be incorrect.

NDSM - National Defense Service Medal
RVCM - Republic of Vietnam Campaign Medal
VSM W/ 1BSS - Vietnam Service Medal with 1 Bronze Star
AFGCM - Air Force Good Conduct Medal
AFM 900-3 - I believe this may be some manner of training certification, as I'm unable to locate any corresponding medal.

Hope this helps!

AFM 900-3 is Air Force Manual 900-3, which describes the procedures for awarding some of what's on the DD-214. The reason the manual is quoted for a particular award is because there are probably no orders for it, so it's supporting documentation just came straight from the regulations.