The American Psychological Association has recently released the new 6th edition of their Publication Manual of the American Psychological Association, After release it was discovered that many errors had slipped through in the published version, so they provided purchasers with revised copies. We now have 2 copies of this manual in the Medical Library at WZ 345 P976 2010 and in Reference.
This website APAstyle.org is a good supplemental source of information on APA style, which is a standard adopted by many nursing publications.
You can find more information about writing via the Medical Library “Links” page under “Editorial Writing Style.”