Cita APA

Polio - The last word - DVD 45 minutes. Centre for Science and Environment.

Chicago Edition Citation

Polio - The Last Word - DVD 45 Minutes. new Delhi: Centre for Science and Environment.

Cita MLA

Polio - The Last Word - DVD 45 Minutes. Centre for Science and Environment.

Atenció: Aquestes cites poden no estar 100% correctes.