Social studies skills,
with Individual self-testing key,
by Forrest E. Long and Helen Halter.
Long, F. Edwin., Halter, H. (1957). Social studies skills: with Individual self-testing key. 3d ed., Sweet Springs, Mo.: Inor Pub. Co..
Long, Forrest Edwin, 1895-, and Helen Halter. Social Studies Skills: With Individual Self-testing Key. 3d ed., Sweet Springs, Mo.: Inor Pub. Co., 1957.
Warning: These citations may not always be complete (especially for serials).