Wheater, C. (2019). Easy pre-calculus step-by-step: Master high-frequency concepts and skills for precalc proficiency--fast! (Second edition.). McGraw-Hill.
Цитирование в стиле Чикаго (17-е изд.)Wheater, Carolyn. Easy Pre-calculus Step-by-step: Master High-frequency Concepts and Skills for Precalc Proficiency--fast! Second edition. New York: McGraw-Hill, 2019.
Цитирование MLA (8-е изд.)Wheater, Carolyn. Easy Pre-calculus Step-by-step: Master High-frequency Concepts and Skills for Precalc Proficiency--fast! Second edition. McGraw-Hill, 2019.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.