Holt McDougal World History: Patterns of Interaction © 2009 Student Edition World History: Patterns of Interaction World History: Patterns of Interaction combines a highly visual approach with primary sources to help all students understand world history and make global connections. Grades: 9-12 Material Type: Student Materials Format: Hardcover, 1392 Pages ISBN-13/EAN: 9780547117881 ISBN-10: 0547117884 Product Code: 1046991 National/State: Michigan Copyright Year: 2009