Παραπομπή APA

Eric Watkins & Immanuel Kant. (2013). Natural science. Cambridge University Press.

Παραπομπή Chicago Style

Eric Watkins και Immanuel Kant. Natural Science. Cambridge: Cambridge University Press, 2013.

Παραπομπή MLA

Eric Watkins και Immanuel Kant. Natural Science. Cambridge University Press, 2013.