Mars, R. (2020). The 99% invisible city: A field guide to the hidden world of everyday design (Unabridged.). HarperAudio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMars, Roman. The 99% Invisible City: A Field Guide to the Hidden World of Everyday Design. Unabridged. New York: HarperAudio, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMars, Roman. The 99% Invisible City: A Field Guide to the Hidden World of Everyday Design. Unabridged. HarperAudio, 2020.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.