Petit, Z. (2015). The essential guide to freelance writing: How to write, work, & thrive on your own terms. Writer's Digest Books.
Lua i Stíl Chicago (17ú heag.)Petit, Zachary. The Essential Guide to Freelance Writing: How to Write, Work, & Thrive on Your Own Terms. Cincinnati, Ohio: Writer's Digest Books, 2015.
Lua MLA (9ú heag.)Petit, Zachary. The Essential Guide to Freelance Writing: How to Write, Work, & Thrive on Your Own Terms. Writer's Digest Books, 2015.
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