During research for an essay, when should you write down information about the source and its location

What is a predic. how did the great railroad strike of 1877 demonstrate the power of workers? ate noun?

Read the excerpt below and answer the question. for a long time she held her neck erect; then her head sank, slowly. her ribs swelled with a mighty heave and she went over. as it is used in this excerpt from “the man who was almost a man,” the phrase “went over” most likely means died escaped jumped vomited

Itscome to our attention that someone has been taking extra supply out of the supply cabinet for some time now and this is not allowed the officer manager says if this continues to happen we will have to put up security cameras this will come out of the office budget there for our paychecks make sure that you're only using me budget for the for your department