The ACS Style Guide is an established and definitive source within and beyond the chemistry community, educating researchers on how to effectively communicate scientific information. (ACS)
The APSA Style Manual for Political Science, revised August 2006, is published by the American Political Science Association as a guide for political scientists and other authors who wish to write and submit an article for publication in one of the APSA’s journals. It follows the Chicago Manual of Style and contains detailed instructions and examples for manuscript preparation, including reference lists. (American Political Science Association)
IEEE citation style includes in-text citations, numbered in square brackets, which refer to the full citation listed in the reference list at the end of the paper. The reference list is organized numerically, not alphabetically. (IEEE)