APA (7th ed.) Citation

(1951). Outlines of a formalist philosophy of mathematics. Elsevier Science.

Chicago Style (17th ed.) Citation

Outlines of a Formalist Philosophy of Mathematics. Amsterdam: Elsevier Science, 1951.

MLA (9th ed.) Citation

Outlines of a Formalist Philosophy of Mathematics. Elsevier Science, 1951.

Warning: These citations may not always be 100% accurate.