APA (7th ed.) Citation

De Zafra, C. The Development of Armor-piercing Shells (With Suggestions for Their Improvement).

Chicago Style (17th ed.) Citation

De Zafra, Carlos. The Development of Armor-piercing Shells (With Suggestions for Their Improvement).

MLA (9th ed.) Citation

De Zafra, Carlos. The Development of Armor-piercing Shells (With Suggestions for Their Improvement).

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