APA (7th ed.) Citation
(1991). Science year 1991: A review of science and technology during the 1990 school year. World Book, Inc.
Chicago Style (17th ed.) Citation
Science Year 1991: A Review of Science and Technology During the 1990 School Year. Chicago: World Book, Inc, 1991.
MLA (9th ed.) Citation
Science Year 1991: A Review of Science and Technology During the 1990 School Year. World Book, Inc, 1991.
Warning: These citations may not always be 100% accurate.