The body of your essay. The main body of your essay should present your case. Each main point should have its own paragraph. You should use evidence to support the arguments you make in this section, referencing your sources appropriately. Find out more on the OU library's referencing and plagiarism area.
I'm glad you asked - here's an Interactive Harvard UTS Referencing Guide we prepared earlier. Williams (2012) was one of the first people to answer this question and suggest that page 4 may be useful for learning how to best reference in text for your essay.