APA (7th ed.) Citation

Emery, D. W., & Pence, R. W. A grammar of present-day english (2a ed.).

Chicago Style (17th ed.) Citation

Emery, D. W., and R. W. Pence. A Grammar of Present-day English. 2a ed.

MLA (8th ed.) Citation

Emery, D. W., and R. W. Pence. A Grammar of Present-day English. 2a ed.

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