APA (7th ed.) Citation

Trager, G. L., & Smith, H. L. (1951). An outline of English structure. Battenburg Press.

Chicago Style (17th ed.) Citation

Trager, George L., and Henry L. Smith. An Outline of English Structure. Norman: Battenburg Press, 1951.

MLA (9th ed.) Citation

Trager, George L., and Henry L. Smith. An Outline of English Structure. Battenburg Press, 1951.