APA (7 वां संस्करण) प्रशस्ति पत्र

Four Hearsemen, The Confederates, Four Tissimos, Air Fours, & Toronto Rhythmaires. Barber shop quartet winners, 1955 medalists. Decca DL-8177.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Four Hearsemen, The Confederates, Four Tissimos, Air Fours, और Toronto Rhythmaires. Barber Shop Quartet Winners, 1955 Medalists. S.l: Decca DL-8177.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Four Hearsemen, et al. Barber Shop Quartet Winners, 1955 Medalists. Decca DL-8177.