We used the Space Mission Engineering: The New SMAD by Wertz, Everett, and Puschell for my senior capstone project. It's pretty comprehensive about all things

We used the Space Mission Engineering: The New SMAD by Wertz, Everett, and Puschell for my senior capstone project. It's pretty comprehensive about all things involved about space missions. You would specifically want to look into its chapter about launch vehicles since that is what SpaceX does (they're basically launch-to-orbit-as-a-service). Dragon is their payload capsule while the Falcon is the launch vehicle (the rocket).