APA (7th ed.) Citation
Viola Núñez, H., Ant´unez da Graca, C., Ram´´irez Pintos, W., & Huelmo Ozano, R. (1980). Gastrectomies for Gastroduodenal Ulcus.
Chicago Style (17th ed.) Citation
Viola Núñez, Humberto, Carlos Ant´unez da Graca, Wilson Ram´´irez Pintos, and Roberto Huelmo Ozano. Gastrectomies for Gastroduodenal Ulcus. 1980.
MLA (9th ed.) Citation
Viola Núñez, Humberto, et al. Gastrectomies for Gastroduodenal Ulcus. 1980.
Warning: These citations may not always be 100% accurate.