APA (7th ed.) Citation

Welzel, H. (1957). Derecho natural y justicia material. Aguilar.

Chicago Style (17th ed.) Citation

Welzel, Hans. Derecho Natural Y Justicia Material. Madrid: Aguilar, 1957.

MLA (9th ed.) Citation

Welzel, Hans. Derecho Natural Y Justicia Material. Aguilar, 1957.

Warning: These citations may not always be 100% accurate.