Tracking Campaign Source from Web Form Submission

Tracking Campaign Source from Web Form Submission

Hi,

i have a lead web form capture on a landing page in order to gather lead data.

But i want to assign a campaign source value to this lead as well.
I thought that i could have used this code (hidden field within the form):

<input type='hidden' maxlength='20' name='Campaign Source' value='Campaign 1' />

Data from my leads are stored execpted the campaign source within the CRM

Shouldn't i use a hidden form for accomplishing this task ?

Thanks for helping me sorting this out.