APA (7th ed.) Citation

Williams, R. J. (1946). The human frontier: A new pathway for science toward a better understanding of ourselves. Harcourt, Brace and company.

Chicago Style (17th ed.) Citation

Williams, Roger J. The Human Frontier: A New Pathway for Science Toward a Better Understanding of Ourselves. New York: Harcourt, Brace and company, 1946.

MLA (9th ed.) Citation

Williams, Roger J. The Human Frontier: A New Pathway for Science Toward a Better Understanding of Ourselves. Harcourt, Brace and company, 1946.