The Purdue Online Writing Lab (OWL) is an excellent resource to use for various writing projects. The OWL guides you through how to research and write for different subjects.
The website features a “Job Search Writing” section, which will lead you through writing a resume, cover letter, and more. The “Research and Citation” section will steer you through using research, avoiding plagiarism, and citing your sources. The style guides for MLA and APA citation formats are what the OWL is well known for, and is an excellent resource for making sure your citations are correct.