Sheppard, H. L. (1967). Effects of family planning on poverty in the United States. W.E. Upjohn Institute for Employment Research.
Chicago Style (17th ed.) CitationSheppard, Harold L. Effects of Family Planning on Poverty in the United States. Kalamazoo, Mich: W.E. Upjohn Institute for Employment Research, 1967.
MLA引文Sheppard, Harold L. Effects of Family Planning on Poverty in the United States. W.E. Upjohn Institute for Employment Research, 1967.
警告:這些引文格式不一定是100%准確.