Clark, W. D., & McCune, S. K. (2019). Easy math step-by-step: Master high-frequency concepts and skills for mathematical proficiency--fast! (Second edition.). New York: McGraw-Hill Education.
Chicago Style CitationClark, William D., and Sandra K. McCune. Easy Math Step-by-step: Master High-frequency Concepts and Skills for Mathematical Proficiency--fast! Second edition. New York: McGraw-Hill Education, 2019.
MLA CitationClark, William D., and Sandra K. McCune. Easy Math Step-by-step: Master High-frequency Concepts and Skills for Mathematical Proficiency--fast! Second edition. New York: McGraw-Hill Education, 2019.
Warning: These citations may not always be 100% accurate.