Cita APA (7a ed.)

Lenzen, V. F. (1967). Procedures of empirical science. University of Chicago Press.

Cita Chicago Style (17a ed.)

Lenzen, Victor Fritz. Procedures of Empirical Science. [Chicago]: University of Chicago Press, 1967.

Cita MLA (9a ed.)

Lenzen, Victor Fritz. Procedures of Empirical Science. University of Chicago Press, 1967.