1. On the article itself:
* Top or Bottom of the First Page: Often, the volume and issue number are clearly displayed at the top or bottom of the first page of the PDF or printed article. Look for something like "Vol. 10, No. 2" or "Vol. 10(2)" or similar variations. The "Vol." indicates volume, and "No." or a number in parentheses indicates the issue number.
* Title Page/Running Head: Some journals include this information on the title page or in a running header that repeats on every page.
* Article Metadata: If it's an online article, hover over or click on metadata (often a small "i" icon or "details" link) to see the full article information which *almost always* includes the volume and issue number.
2. In the bibliographic information (citation):
If you only have a citation, the volume and issue number are standard parts of most citation styles (APA, MLA, Chicago, etc.). They will be clearly indicated.
* APA: (Author, Year). *Title of article*. *Journal Title*, *Volume*(Issue), pages. (e.g., Smith, J. (2023). A new theory. *Journal of Science*, *25*(2), 150-165.)
* MLA: Author. "Title of Article." *Title of Journal*, Volume Number, Issue Number (Year): Pages. (e.g., Smith, John. "A New Theory." *Journal of Science*, 25, 2 (2023): 150-65.)
3. On the Journal's Website:
If you know the journal title and article title, you can search the journal's website. The full bibliographic information, including volume and issue number, will usually be provided on the article's webpage.
4. In a Database:
If you found the article through a research database (like Web of Science, Scopus, PubMed, JSTOR, etc.), the volume and issue number will be listed in the article's record.
If you're still having trouble, providing the journal title and article title will help others pinpoint the volume and issue number.