There are many different versions of the Beatles complete discography, depending on whether you include versions of albums from every country, deleted releases, and promotional items.

A good starting point is the All Music Guide which has a discography with tracklistings and reviews All Music Guide.

A UK listing with details of selected other releases is available at Answers.com.

Selected discography details will also be available in reference books such as "The Great Rock Discography", Edinburgh: Canongate Press, 2004. Check your local library for copies of this book.