Chicago Manual of Style at Purdue OWLThis free resource, part of Purdue University's Online Writing Lab or OWL, offers examples for writing citations in the Chicago Manual of Style (CMOS) for research papers. Ignore the interactive ads and use the menu on the left side of the webpage to navigate the contents of the site (for example, click the link for CMOS Author Date Sample Paper to go directly to that section).
Per SPS MSDS program guidelines, use the CMOS author-date format, not the notes-bibliography format.