I've writing an essay and in one paragraph, I'm talking nigh ii lines of evidence for conditions required for life on Mars and source for both is a unmarried newspaper. Practise I reference the newspaper twice (in the text body), one time later each line of evidence, or would I only mention it in one case at the end of the paragraph? My concern is that I've written a few sentences about each and then it might not be obvious if I merely reference information technology once, simply information technology looks strange if I'm referencing the same matter twice so close together.