Oxford citation style is distinct from most of the referencing styles as it uses footnote at the bottom of the page. However, most students use Oxford referencing generators online as they are not familiar with the format or footnotes. But, it is quite simple, and one must remember it, as it is used frequently in the academic papers.
Take a look at the following sources
If you wish to cite a book in the footnote, then you have to follow the template given below
n Initials, Surname of the author, Title of the book, Publisher, Place of publication, Year, Page Number
For instance: 1 B.A, Herzog, Advanced Techniques for Social Media Marketing, ABC House, Bath., 2019, p. 63