(1979). The 1979 world book year book.: The annual supplement to the world book encyclopedia (ed.). World book- childcraft international, Inc..
芝加哥风格引文The 1979 World Book Year Book.: The Annual Supplement to the World Book Encyclopedia. ed. Chicago: World book- childcraft international, Inc., 1979.
MLA引文The 1979 World Book Year Book.: The Annual Supplement to the World Book Encyclopedia. ed. World book- childcraft international, Inc., 1979.
警告：这些引文格式不一定是100％准确.