Cita APA (7th ed.)

Uthemann, E. W., & Gercke, H. (2003). Francis Berrar: Urban camping.

Cita Chicago (17th ed.)

Uthemann, Ernest W., i Hans Gercke. Francis Berrar: Urban Camping. Saarbrücken, 2003.

Cita MLA (8th ed.)

Uthemann, Ernest W., i Hans Gercke. Francis Berrar: Urban Camping. 2003.