APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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