III. At one time it was quite customary to set all quotations, whether in English or a foreign language, prose or verse, in italics, but that fashion is now happily obsolete. Some modern printers use italic for bits of verse between paragraphs in the text of roman, but it is a fancy and not likely to be permanent.
IV. Do not italicize foreign titles preceding names of foreign institutions or places, streets, etc., the meaning or position of which in English would call for roman type.
Pere Ladeau; Freiherr von Schwenau; the Place de la Concorde; the Museo delle Terme.
V. In text matter use roman for the name of any author, but italicize the title of the work. This applies to books, including plays, essays, cycles of poems, and single poems of considerable length, usually printed separately, and not from the context understood to form parts of a larger volume; pamphlets, treatises, tracts, documents, and periodicals (including regularly appearing proceedings and transactions). In the case of newspapers and periodicals the name of the place of publication should be italicized when it forms an integral part of the name, but do not under ordinary circumstances italicize the article the.
In many offices the names of papers, magazines, and serials are not italicized. Roman is often used without quotation marks, the title being indicated by capitalization. When such names are used as credits at the end of citations or notes they should always be italicized.
This is largely a matter of individual taste and office style. Ample warrant can be found for either form in the writing of the best authorities and in the practice of the best offices.
VI. In citations which make a full paragraph, and in footnotes, the name of both author and book are commonly set in roman lower-case. At the end of a paragraph or footnote specification of author and book may be roman for author and italic for book. When only the book is given, use italics.
These rules are often modified in long bibliographical lists, tables, or other cases when following them would cause a great accumulation of italics and spoil the appearance of a page. Do not italicize the books of the Bible (canonical or apocryphal) or titles of ancient manuscripts, or symbols used to designate manuscripts.
D 16, M 6, P, J.
VII. Italicize see and see also, in indices and similar compilations when they are used for cross-reference, and when it is desirable to differentiate them from the context.