Cita APA (7th ed.)

Merkel, K., & Merkel, K. (2005). Trilogy of stone and time: Klaus Merkel. Lars Müller Publishers.

Cita Chicago (17th ed.)

Merkel, Klaus, i Klaus Merkel. Trilogy of Stone and Time: Klaus Merkel. [Zürich], Switzerland: Lars Müller Publishers, 2005.

Cita MLA (8th ed.)

Merkel, Klaus, i Klaus Merkel. Trilogy of Stone and Time: Klaus Merkel. Lars Müller Publishers, 2005.