APA (7th ed.) Citation

Tapia C., R. G. A Study of Henry David Thoreau.

Chicago Style (17th ed.) Citation

Tapia C., Rubén Gustavo. A Study of Henry David Thoreau.

MLA (8th ed.) Citation

Tapia C., Rubén Gustavo. A Study of Henry David Thoreau.

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