Gaya APA

AL, Z, I, E. (2020). COSMIC PINWHEELS: SPIRAL GALAXIES AND THE UNIVERSE . : World Scientific Publishing Co.

Gaya MLA

AL, ZHELYAZKOV, IVAN, ET. "COSMIC PINWHEELS: SPIRAL GALAXIES AND THE UNIVERSE". : World Scientific Publishing Co, 2020. S2-Pendidikan Bahasa Arab.