APA (7th ed.) Citation

Swoboda, H., & Zotter, G. (1930). Historia de Grecia. Labor.

Chicago Style (17th ed.) Citation

Swoboda, Heinrich, and Guillermo Zotter. Historia De Grecia. Barcelona [etc.]: Labor, 1930.

MLA (9th ed.) Citation

Swoboda, Heinrich, and Guillermo Zotter. Historia De Grecia. Labor, 1930.

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