APA引文

Pearson, H. C., & Kirchwey, M. F. (1921). Essentials of English: Lower grades. American Book Co.

Chicago Style (17th ed.) Citation

Pearson, Henry Carr, and Mary Frederika Kirchwey. Essentials of English: Lower Grades. New York, Cincinnati [etc.]: American Book Co, 1921.

MLA引文

Pearson, Henry Carr, and Mary Frederika Kirchwey. Essentials of English: Lower Grades. American Book Co, 1921.