APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (8:e uppl.)

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