APA (7th ed.) Citation

Bahm, A. J. (1980). Axiology, the science of values ; Ethics, the science of oughtness. World Books.

Chicago Style (17th ed.) Citation

Bahm, Archie J. Axiology, the Science of Values ; Ethics, the Science of Oughtness. Albuquerque, N.M.: World Books, 1980.

MLA (9th ed.) Citation

Bahm, Archie J. Axiology, the Science of Values ; Ethics, the Science of Oughtness. World Books, 1980.