APA (7th ed.) Citation

Parker, B. M. (1931). An Introduction course in science in the intermediate grades.

Chicago Style (17th ed.) Citation

Parker, Bertha M. An Introduction Course in Science in the Intermediate Grades. 1931.

MLA (8th ed.) Citation

Parker, Bertha M. An Introduction Course in Science in the Intermediate Grades. 1931.

Warning: These citations may not always be 100% accurate.