Final answer:
John should use the Page Break function (CTRL+Enter) to start a new page in his document, especially if he is creating a section like References where formatting must be precise.
Step-by-step explanation:
The best way for John to start a new page in a document is to use the Page Break function, which can be executed with the shortcut CTRL+Enter on his keyboard. This method is preferred over pressing ENTER multiple times, which is inefficient, or changing the font size, which does not guarantee a new page and can disrupt the document's formatting. Closing and reopening the document does not insert a new page either.
When formatting a document such as an academic paper, it's common to have to create a section for references. At the end of the document, you should start a new page with the centered, boldfaced title References at the top of the page. Each reference entry should begin at the left margin and subsequent lines should be indented one-half inch (achievable by selecting Hanging from the Special options in the Indentation section of the Paragraph menu in Microsoft Word). Subsequent lines of each entry should be double-spaced and entries should be alphabetized by authors' last names or by the first word of the title when author names are unavailable.