Cita APA (7a ed.)

Frondizi, R. (1971). What is value?: An introduction to axiology (2nd ed.). 92 : Open Court.

Cita Chicago Style (17a ed.)

Frondizi, Risieri. What Is Value?: An Introduction to Axiology. 2nd ed. La Salle (Illinois): 92 : Open Court, 1971.

Cita MLA (9a ed.)

Frondizi, Risieri. What Is Value?: An Introduction to Axiology. 2nd ed. 92 : Open Court, 1971.