- Encyclopedia Astronautica: Skylab - An annotated chronology of the missions.
- Project Skylab - Offers a detailed history of the Skylab program, including the goals of the program and the achievements of the three manned flights to Skylab. Has an imagery collection and links to sites outlining Skylab's contributions to various scientific fields.
- Skylab: A Chronology - The NASA History Office presents an online version of this authoritative book.
