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Welcome to the Purdue OWL®. We are a globally renowned resource that provides assistance with English to students, teachers, professionals, and organizations across the world. Our goal is to assist clients in their development as writers - no matter their skill level.
- APA Style
General APA Guidelines. Your essay should be typed and...
- MLA Formatting and Style Guide
A comprehensive guide on MLA formatting and citation style,...
- In-Text Citations
Long quotations. Place direct quotations that are 40 words...
- On-Campus Writing Lab
Contact Us. Purdue On-Campus Writing Lab Purdue University...
- Online Writing Lab
The Online Writing Lab (the Purdue OWL) at Purdue University...
- Home
Welcome to the Purdue OWL® We are a globally renowned...
- Research
The goal of the Research area of the Purdue OWL is to...
- Contact
Contact the Purdue OWL and Writing Lab Staff; Contact the...
- APA Style
The Online Writing Lab (the Purdue OWL) at Purdue University houses writing resources and instructional material, and we provide these as a free service at Purdue. Students, members of the community, and users worldwide will find information to assist with many writing projects.
Rules for handling works by a single author or multiple authors that apply to all APA-style references in your reference list, regardless of the type of work (book, article, electronic resource, etc.)
These OWL resources will help you learn how to use the American Psychological Association (APA) citation and format style. This section contains resources on in-text citation and the References page, as well as APA sample papers, slide presentations, and the APA classroom poster.
These OWL resources will help you conduct research using primary source methods, such as interviews and observations, and secondary source methods, such as books, journals, and the Internet. This area also includes materials on evaluating research sources.
MLA Formatting and Style Guide. The following overview should help you better understand how to cite sources using MLA 9 th edition, including how to format the Works Cited page and in-text citations.
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General APA Guidelines. Your essay should be typed and double-spaced on standard-sized paper (8.5" x 11"), with 1" margins on all sides. Include a page header (also known as the “running head”) at the top of every page. For a professional paper, this includes your paper title and the page number.