Dyfyniad APA
Vinti, J. P., Der, G. J., & Bonavito, N. L. (1998). Orbital and celestial mechanics. American Institute of Aeronautics and Astronautics.
Dyfyniad Arddull Chicago
Vinti, John P., Gim J. Der, and Nino L. Bonavito. Orbital and Celestial Mechanics. Reston, Va.: American Institute of Aeronautics and Astronautics, 1998.
Dyfyniad MLA
Vinti, John P., et al. Orbital and Celestial Mechanics. American Institute of Aeronautics and Astronautics, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.