Journals (). Both volume and issue numbers are required in references to scholarly journal articles, if present. Not all journals have. 2). Volume numbers in references should be italicized (American Psychological Association [APA], , p. ), but "do not italicize the issue. Newspapers, often published daily or weekly, are, strictly speaking, a separate category of serial. Periodicals are most often referenced by volume and issue. ”, both issue numbers should be placed into a single element: Multiple Issue Numbers: The element issue number () is. : Saga Book Two: Vaughan, Brian K, Staples, Fiona: Books. Publisher : Image Comics; Deluxe edition (May 2, ). 2 (Saga, 2): Brian K. Vaughan, Fiona Staples: Books. See all formats and editions Volume two (issues ) lives up to it nicley! Instability of an Equilibrium State of Two Binary Mixtures with the General Interface and One Free Boundary Marina V. Efimova, Complexity of self-correcting algorithms for two search problems V. V. Morozenko, 50 A zero-one law for many-sorted first-order predicate logic. In APA Style, no matter the type of periodical, they all follow the same reference which may contain both volume and issue numbers. Current Issue · Archive · Full Archive; Volume 12 (). Volume 12, Issue 3 · Volume 12, Issue 2 · Volume 12, Issue 1. Volume 11 ().