That's incorrect, it will work.
FIRST CABLE
Yellow is video, white is audio. There doesn't look like that here is an audio input on the Quad.
The first one you need is a phono plug to bnc plug, you can buy a cable with one of these on each end.
Maplins
Ebay
OR
If the cable on your camera is long enough to reach the quad box you can just buy the adapter without the cable.
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SECOND PICTURE
The second pic shows a 4 pole plug ,where does that come from and go to as it's not exactly what you would expect to find on a cctv system, is the plug on the other end exactly the same?
It's common for camcorders to have these as they will have sound (stereo) and video, but your quad box doesn't look like it has an input for sound.
If the cable in the picture has the same plug on the other end you can replace it with one of these.
Ebay
Connect the yellow plug to one of these for your video connection to the Quad.
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THIRD CABLE
You need a BNC plug to BNC plug.
Ebay with cable
OR if the cable is already long enough.
Ebay
Maplins