By cover letter, Sample cover letter

Hi,is it true that a covering letter for a position in the UK should be very short, not longer than a page (A4) and usually only three paragraphs? I read this yesterday on the net and it confuses me because I have seen short as well as long sample cover letter. Apparently this should be the...

dear sir/madam i am pursuing postgraduation in forestry (Economics and mgmt.) and graduated in agriculture. Now i want to make my career in forestry field, pls guide me with sample cover letter how can i make covering letter for applying a job. bhoops India. Guest wrote:How do i write the...