APA (7th ed.) Citation

Smith, N. B., Hart, H. C., & Baker, C. B. (1960). Beyond The Horizon. The Bobbs-Merrill Comp.

Chicago Style (17th ed.) Citation

Smith, Nila Banton, Hazel C. Hart, and Clara Belle Baker. Beyond The Horizon. The Bobbs-Merrill Comp, 1960.

MLA (8th ed.) Citation

Smith, Nila Banton, et al. Beyond The Horizon. The Bobbs-Merrill Comp, 1960.