Παραπομπή APA

Open University Course Team. (1973). Set axioms, set constructions sets and numbers. Unit 1-3. Open University Press.

Παραπομπή Chicago Style

Open University Course Team. Set Axioms, Set Constructions Sets and Numbers. Unit 1-3. Open University Press, 1973.

Παραπομπή MLA

Open University Course Team. Set Axioms, Set Constructions Sets and Numbers. Unit 1-3. Open University Press, 1973.