APA

Sampson R. V., . (1956). Progress in the age of reason: the seventeenth century to the present day. Cambridge: Harvard University Press.

Chicago

Sampson Ronald Victor, . 1956. Progress in the age of reason: the seventeenth century to the present day. Cambridge: Harvard University Press.

Harvard

Sampson R. V., . (1956). Progress in the age of reason: the seventeenth century to the present day. Cambridge: Harvard University Press.

MLA

Sampson Ronald Victor, . Progress in the age of reason: the seventeenth century to the present day. Cambridge: Harvard University Press. 1956.