APA aipamena

Betzhold H., H. (1942). Eugenesia (2ed.). Zig-Zag.

Chicago Style aipamena

Betzhold H., Hans. Eugenesia. 2ed. Santiago: Zig-Zag, 1942.

MLA aipamena

Betzhold H., Hans. Eugenesia. 2ed. Zig-Zag, 1942.