Heitel, C., & Damerow, P. (1989). Mathematics, education and society: Reports and papers presented in .. Division of Science, Technical and Environmental Education, Unesco.
芝加哥风格引文Heitel, Christine, 与 Peter Damerow. Mathematics, Education and Society: Reports and Papers Presented in .. Paris: Division of Science, Technical and Environmental Education, Unesco, 1989.
MLA引文Heitel, Christine, 与 Peter Damerow. Mathematics, Education and Society: Reports and Papers Presented in .. Division of Science, Technical and Environmental Education, Unesco, 1989.
警告：这些引文格式不一定是100％准确.