APA (7th ed.) Citation

Wilder, H. B., Ludlum, R. P., Brown, H. M., & Anderson, H. R. (1948). This is America's story. Houghton.

Chicago Style (17th ed.) Citation

Wilder, Howard Baker, Robert Phillips Ludlum, Harriett McCune Brown, and Howard R. Anderson. This Is America's Story. Boston: Houghton, 1948.

MLA (8th ed.) Citation

Wilder, Howard Baker, et al. This Is America's Story. Houghton, 1948.