Cita APA (7a ed.)

Walker, M. J. (1963). The Nature of scientific thought. Prentice-Hall.

Cita Chicago Style (17a ed.)

Walker, Marshall John. The Nature of Scientific Thought. Englewood Cliffs, N.J.: Prentice-Hall, 1963.

Cita MLA (9a ed.)

Walker, Marshall John. The Nature of Scientific Thought. Prentice-Hall, 1963.