APA
Discovery Communications Inc, . (2005). Magnetism: Physical Science, Grades 6-12 [electronic resource] ver. 2.0. Mumbai: Discovery Communications Inc.
Chicago
Discovery Communications Inc, . 2005. Magnetism: Physical Science, Grades 6-12 [electronic resource] ver. 2.0. Mumbai: Discovery Communications Inc.
Harvard
Discovery Communications Inc, . (2005). Magnetism: Physical Science, Grades 6-12 [electronic resource] ver. 2.0. Mumbai: Discovery Communications Inc.
MLA
Discovery Communications Inc, . Magnetism: Physical Science, Grades 6-12 [electronic resource] ver. 2.0. Mumbai: Discovery Communications Inc. 2005.