MLA

Frege, Gottlob, and John Langshaw Austin. The Foundations of Arithmetic : a Logico-mathematical Enquiry Into the Concept of Number. 2nd revised ed. Oxford: Blackwell, 1959.

APA

Frege, G., & Austin, J. Langshaw. (1959). The foundations of arithmetic : a logico-mathematical enquiry into the concept of number. 2nd revised ed. Oxford: Blackwell.

Chicago

Frege, Gottlob The Foundations of Arithmetic: A Logico-Mathematical Enquiry Into the Concept of Number. Translated by John Langshaw Austin. 2nd revised ed. Oxford: Blackwell, 1959.