APA
Bradford D Smart, . (2005). Topgrading: How leading Companies win by hiring coaching and keeping the best people. New york: Penguin Group.
Chicago
Bradford D Smart, . 2005. Topgrading: How leading Companies win by hiring coaching and keeping the best people. New york: Penguin Group.
Harvard
Bradford D Smart, . (2005). Topgrading: How leading Companies win by hiring coaching and keeping the best people. New york: Penguin Group.
MLA
Bradford D Smart, . Topgrading: How leading Companies win by hiring coaching and keeping the best people. New york: Penguin Group. 2005.