APA citiranje

Walker, R. (2007). UNDER THE MICROSC0PE BREATHING HOW WE USE AIR. Grolier.

Chicago Style Citation

Walker, Richard. UNDER THE MICROSC0PE BREATHING HOW WE USE AIR. Grolier, 2007.

MLA citiranje

Walker, Richard. UNDER THE MICROSC0PE BREATHING HOW WE USE AIR. Grolier, 2007.

Opozorilo: Ti citati niso vedno 100% točni.