APA (7th ed.) Citation

Jones, E., Morgan, E., & Landis, P. E. (1949). Easy steps to health: The road to health. Laidlaw.

Chicago Style (17th ed.) Citation

Jones, Edwina, Edna Morgan, and Paul E. Landis. Easy Steps to Health: The Road to Health. Chicago [u.a.]: Laidlaw, 1949.

MLA (9th ed.) Citation

Jones, Edwina, et al. Easy Steps to Health: The Road to Health. Laidlaw, 1949.