You should either own a copy or have one easily and quickly available to you. Perhaps the best guide to clean, clear, effective writing in English remains The Elements of Syle, by William Strunk, Jr., and E. B. White. The version available in full text on the web is Strunk's original work, published in 1935 for his students at Cornell. Years later, E. B. White prepared an edition of the book for the public. That's the one you want.
Good scholarship requires good writing.
So does good social work practice. Below are links to some resources you may find helpful. Internet Citation Guides The librarians at the University of Wisconsin-Madison's Memorial Library have compiled what looks like a definitive list of guides to citing electronic sources in research papers and bibliographies. Here's how the experts say to do it.