Martin, G., & Pearson, W. (1994). With a little help from my friends: The making of Sgt. Pepper (1st U.S. ed.). Little, Brown.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMartin, George, और William Pearson. With a Little Help from My Friends: The Making of Sgt. Pepper. 1st U.S. ed. Boston: Little, Brown, 1994.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMartin, George, और William Pearson. With a Little Help from My Friends: The Making of Sgt. Pepper. 1st U.S. ed. Little, Brown, 1994.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.