Dressler, I., & Keenan, E. P. (1989). Integrated mathematics: Course I (Second edition.). Amsco School Pubns Inc.
Lua i Stíl Chicago (17ú heag.)Dressler, Isidore, agus Edward P. Keenan. Integrated Mathematics: Course I. Second edition. New York: Amsco School Pubns Inc, 1989.
Lua MLA (8ú heag.)Dressler, Isidore, agus Edward P. Keenan. Integrated Mathematics: Course I. Second edition. Amsco School Pubns Inc, 1989.
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