APA (7th ed.) Citation

Aldiss, B. W., & Rietbergen, N. (1980). Wrede werelden. Centripress.

Chicago Style (17th ed.) Citation

Aldiss, Brian W., and Nancy Rietbergen. Wrede Werelden. Bussum, Holland: Centripress, 1980.

MLA (9th ed.) Citation

Aldiss, Brian W., and Nancy Rietbergen. Wrede Werelden. Centripress, 1980.