Sekai dai hyakka jiten.
世界大百科事典
APA Citation
Heibonsha., 平凡社. (19551963). Sekai dai hyakka jiten. Tōkyō: Heibonsha.
MLA Citation
Heibonsha, and 平凡社. Sekai Dai Hyakka Jiten. Tōkyō: Heibonsha, 19551963.
Warning: These citations may not always be complete (especially for serials).