APA (7 वां संस्करण) प्रशस्ति पत्र

Knapp, J. (1946). The Christmas cycle in symbols. [Catechetical Guild Educational Society].

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Knapp, Justina. The Christmas Cycle in Symbols. St. Paul, Minn: [Catechetical Guild Educational Society], 1946.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Knapp, Justina. The Christmas Cycle in Symbols. [Catechetical Guild Educational Society], 1946.