if you quote you put it in the body of the text "blah blah blah " said Tutu ( 2013) if you paraphrase i.e. write it in your own words yo put it at the end of the part you have used your own words(tutu 2013)
Personally if my students use this site and reference it i give them the work back and tell them to find a proper source. but if you have a nicer tutor then at the end of the paragraph you have written then put (
www.silkysteps etc.)