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2 Words to use with harl
DOUGLASS, HARL R. Senior mathematics, by Harl R. Douglass & Lucien B. Kinney.
DOUGLASS, HARL R. Modern methods in high school teaching.
DOUGLASS, HARL R. Senior mathematics, by Harl R. Douglass & Lucien B. Kinney.
DOUGLASS, HARL R. Modern methods in high school teaching.