The complete introductory orbital mechanics text for students and a springboard to more advanced study.
Orbital Mechanics For Engineering Students[Howard Curtis, 2004] (hardcover)
Dr. Howard D. Curtis, 2004,673pgs,hardcover
ISBN#978-0750661690, Elsevier
Straight forward teach-by-example approach. Book assumes no prior experience. All of the required basic dynamics principles are developed in detail so that neither student nor instructor will have to refer to other sources.