Marvel will release two collections of material from the bestselling World War Hulk event (see ''World War Hulk' Lays Waste to June') this spring.  Hulk:  World War Hulk will collect World War Hulk Prologue, World War Hulk #1-#5, and Incredible Hulk #109 in a 336-page hardcover at $24.99 (page count and price may change depending on bonus material).    

World War Hulk:  Gamma Corps will collect World War Hulk:  Gamma Corps #1-#4 in a 96-page trade paperback at $10.99 (page count and price may change depending on bonus material).