APA-viite (7. p.)

Roemer, J. E. (1988). Free to lose: An introduction to Marxist economic philosophy. Harvard University Press.

Chicago-viite (17. p.)

Roemer, John E. Free to Lose: An Introduction to Marxist Economic Philosophy. Cambridge, MA: Harvard University Press, 1988.

MLA-viite (9. p.)

Roemer, John E. Free to Lose: An Introduction to Marxist Economic Philosophy. Harvard University Press, 1988.