APA (7th ed.) Citation

Scott, Z. E., Congdon, R. T., Peet, H. E., & Frazee, L. (1928). The open door language series. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Scott, Zenos Edmund, Randolph Thatcher Congdon, Harriet E. Peet, and Laura Frazee. The Open Door Language Series. Boston ; New York [etc.]: Houghton Mifflin, 1928.

MLA (8th ed.) Citation

Scott, Zenos Edmund, et al. The Open Door Language Series. Houghton Mifflin, 1928.