is the following a primary source or a secondary source? GRAPES WRATHI GRAPES WRATH! THE GRAPES OF WRATH John Strinbeck John Steinbeck. The Grapes of Wrath. New York: Viking Press, 1939 Select one: O a primary source Ob secondary source Is the following a primary source or a secondary source William Gropper. Construction of a Dam. Painting. 1939. Select one: O primary source O b. secondary source Is the following a primary source or a secondary source? "This own wie THE UNTOLD STORY OF THOSE WHO SURVIVES THE GREAT AMERICAN DUST BOWL The WORST HARD TIME TIMOTHY EGAN Timothy Egan. The worst Hard Time: The Untold Story of those who survived the Great American Dust Bowl. New York: Mariner Books. rpt. 2006. Select one: O a primary source O b. secondary source