Παραπομπή APA

Hajnal,Andras, & Hamburger,Peter. (1999). Set theory. Cambridge University.

Παραπομπή Chicago Style

Hajnal,Andras, και Hamburger,Peter. Set Theory. Cambridge: Cambridge University, 1999.

Παραπομπή MLA

Hajnal,Andras, και Hamburger,Peter. Set Theory. Cambridge University, 1999.