Cita APA (7a ed.)

Laudan, L. (1977). Progress and its problems: Towards a theory of scientific growth. University of California Press.

Cita Chicago Style (17a ed.)

Laudan, Larry. Progress and Its Problems: Towards a Theory of Scientific Growth. Berkeley [etc.]: University of California Press, 1977.

Cita MLA (9a ed.)

Laudan, Larry. Progress and Its Problems: Towards a Theory of Scientific Growth. University of California Press, 1977.