To identify appropriate electronic or physical books on your topic, begin with the library catalog to find books in the University Libraries. Books on Sport Coaching and Sport Psychology may be classed in Library of Congress areas BF, GV, QP, RA, RC, or RD. Here is a link to the Library of Congress Classification Outline, with detailed subclassification for these subject areas. If you do not find the books you need or if you wish to locate additional resources, then search Prospector or WorldCat.  You may want to use some of the following Library of Congress subject headings for your searches:

Achievement motivation

Athletes--Psychology

Athletic injuries--Psychology

Athletics

Coach-athlete relationships

Coaches (Athletics) -- Training of

Coaching Athletics (and subheadings)

Exercise--Psychological aspects

Leadership

Motivation (Psychology)

Performance--Psychological aspects

Performance anxiety

Physical education and training

School sports coaching

[Sport] coaching (e.g. Baseball coaching)

Sports--Psychological aspects

Sports--Psychology

Sports medicine

Stress management

Women athletes

Women coaches (Athletics)