Cita APA (7a ed.)

Ryan, A. (1973). The philosophy of the social sciences (1st ed., reprinted.). Macmillan.

Cita Chicago Style (17a ed.)

Ryan, Alan. The Philosophy of the Social Sciences. 1st ed., reprinted. London [etc.]: Macmillan, 1973.

Cita MLA (9a ed.)

Ryan, Alan. The Philosophy of the Social Sciences. 1st ed., reprinted. Macmillan, 1973.