Cita APA (7a ed.)
(1991). Science Year 1992. The World Book Annual Science Supplement: A review of Science and Technology During the 1991 School Year. The World Book,Inc.
Cita Chicago Style (17a ed.)
Science Year 1992. The World Book Annual Science Supplement: A Review of Science and Technology During the 1991 School Year. Chicago: The World Book,Inc, 1991.
Cita MLA (9a ed.)
Science Year 1992. The World Book Annual Science Supplement: A Review of Science and Technology During the 1991 School Year. The World Book,Inc, 1991.
Precaución: Estas citas no son 100% exactas.