Gaya APA

Carnap, R. (-1951). Logical foundations of probability, (2d impr.). Penerbitan asli 1950. . London: Routledge and Kegan Paul.

Gaya MLA

Carnap, R.. "Logical foundations of probability, (2d impr.). Penerbitan asli 1950. ". London: Routledge and Kegan Paul, -1951. Buku.