APA (7th ed.) Citation

Cooper, J. C., Middell, G., & Middell, M. (1986). Lexikon alter Symbole (o.A.). Seemann.

Chicago Style (17th ed.) Citation

Cooper, J. C., Gudrun Middell, and Matthias Middell. Lexikon Alter Symbole. o.A. Leipzig: Seemann, 1986.

MLA (8th ed.) Citation

Cooper, J. C., et al. Lexikon Alter Symbole. o.A. Seemann, 1986.