In-text citations typically include the author's last name followed by the publication year. For example, in APA format, it would look like this: (Author, Year). If you are citing a specific page, you can include the page number as well, like this: (Author, Year, p. Page Number).
In other citation styles, such as MLA, you would typically include just the author's last name and the page number, formatted like this: (Author Last Name Page Number). Always remember to refer to the specific style guide (APA, MLA, Chicago, etc.) you are using for detailed formatting requirements.