Successful or necessary because the synonyms for justified are reasonable,give reasons for ,and give grounds for so now I know it is necessary
Figure out your product and then explain it how someone would have to explain it to you to persuade you to want to buy it. Use a technique that you hear on the radio or see on TV. (That should help come up with a fallacy.)
Hope this helps.
first authors first and last name, then the title of the book followed by any chapters/sections used. then the volume (in applicable) them publishers and the year it was published. any editors are out at the end