Margins: Use one inch margins on all pages.
Line Spacing:
Fonts:
Indents: Use a 1/2 inch indent.
Page Numbering:
Page Headers: Short title headers are placed at the top of the page, aligned with the page number.
Reference List:
Be sure to ask your instructor or the publisher to whom you're submitting the paper for more specific formatting rules.
Some publishers require a structured abstract depending on the type of research paper submitted. Be sure to check what the publisher's requirements are.
Basic format for structured abstracts can be seen in PubMed: http://www.nlm.nih.gov/bsd/policy/structured_abstracts.html.