APA
Offstein E. M. J. &. G. S., .Gridiron Leadership : Winning Strategies & Breakthrough Tactics .-978-0-313-37817-1. : ABC-CLIO, California.
Chicago
Offstein E.H Morwick J.M & Griffith S.W, .Gridiron Leadership : Winning Strategies & Breakthrough Tactics .-978-0-313-37817-1. : ABC-CLIO, California.
Harvard
Offstein E. M. J. &. G. S., .Gridiron Leadership : Winning Strategies & Breakthrough Tactics .-978-0-313-37817-1. : ABC-CLIO, California.
MLA
Offstein E.H Morwick J.M & Griffith S.W, .: ABC-CLIO, California. .