Here are scans of the title page , reverse of the title page , and first page of the article so that you can see how the citation is developed. These most often correspond to years, but some journals have volumes that span several years, and others, such as Science , have several volumes a year. If you were looking at volume 12 of a journal issued four times a year, you would likely see Vol. If it isn't, it does. Ordinarily you will be citing articles in a periodical, not the periodical itself.
Some modern periodicals have all the bibliographic information on the first page of each article.
The title and author are normally there, and the remainder of the information is in a header or footer. Author - This is the author or authors of the individual article, not the editor of the journal. Copy down all authors, exactly as they appear, but again leave off honorifics and affiliations. This is always the volume year . The year of publication is 1998.