Bibliography

Schuh, Dwight; 1987. Bowhunter's Encyclopedia. Stackpole Books, Harrisberg, PA.
Hecht, Eugene; 2003. Physics Algerbra/Trig, 3rd edition. Brooks/Cole, Pacific Grove, CA.
Serway, Raymond A.; Beichner, Robert J. 2000. Physics For Scientists and Engneers With Modern Physics, 5th edition. Saunders College Publishing, Orlando, FL.
http;//home.att.net/~sajackson/archery_physics.html
ferris.edu/htmls/connect/science/physic.htm