Which item would be considered a secondary
source on World War I?
(1) map used by General Lanrezac in planning
for the Battle of the Marne
(2) diary of a soldier who fought in the Battle of
the Somme
(3) rifle instruction manual used by a Russian
soldier on the Eastern Front
(4) magazine article on the 75th anniversary of
the poem, “In Flanders Fields”
"(4) magazine article on the 75th anniversary of the poem, “In Flanders Fields” would be an example of a secondary source on World War I. The others are primary.