Zotero is a citation tool that can be used to store and format your citations. Dr. Bernknopf has created a tips sheet to help you enter the data better into the system and how to adjust citations after the reference list has been created to ensure that they are in the proper format.
Most information types will be covered in the College of Pharmacy Referencing Format guide. However, occasionally you may need to find the citation style for a different source type. The full AMA Manual of Style book (more than 1200 pages), is linked below for those trickier types of information to cite.