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An important resource for umpires, coaches, leagues, and serious fans of Major League Baseball (MLB), this handbook lists the dos and don'ts of the national pastime. Fully up-to-date, this book contains the official and sanctioned MLB rules and their interpretations per the Playing Rules Committee, the sole group that determines baseball's regulations.

Extremely thorough and expertly detailed, this guide is the most valuable resource for referees, coaches, leagues, and serious fans of the National Hockey League. The singular resource for the official rules of the game, updated for the most recent changes, this book includes everything that is necessary to know in order to be a professional hockey expert--on or off the ice. From puck dimensions to penalty calls, and with informative diagrams and a complete index, nothing is overlooked in this essential hockey reference.