APA (7 वां संस्करण) प्रशस्ति पत्र

Schippel, A. (1908). Schippel's school buildings. Albert Schippel, Architect.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Schippel, Albert. Schippel's School Buildings. Mankato, Minn.: Albert Schippel, Architect, 1908.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Schippel, Albert. Schippel's School Buildings. Albert Schippel, Architect, 1908.