Cita APA (7th ed.)

Ruetz, M., & Honnef, K. (2007). Eye on eternity 1968-1997. Seemann.

Cita Chicago (17th ed.)

Ruetz, Michael, i Klaus Honnef. Eye on Eternity 1968-1997. Leipzig: Seemann, 2007.

Cita MLA (8th ed.)

Ruetz, Michael, i Klaus Honnef. Eye on Eternity 1968-1997. Seemann, 2007.