on CMOS Shop Talk:
Careless quoting is a writing crime. Fiction or nonfiction, a writer must be scrupulous in quoting words precisely and crediting their source. Most publishing contracts hold the author liable for misrepresentations and plagiarism, but even without that legal pressure, a writer, of all people, should naturally respect the intellectual property of others.
Writers of historical fiction, memoir, creative nonfiction, and books for children often handle source materials that provide background and authenticity to their stories. Sometimes they quote from published or unpublished writings; sometimes they quote from speeches or interviews or online videos. But the way they credit their sources ranges from providing pages of detailed citations to providing—nothing.
Let’s take a closer look at the writer’s challenges and responsibilities.