APA (7th ed.) Citation

Citrine, W. Letter (copy): Mr Manuel Marquez Sanchez.

Chicago Style (17th ed.) Citation

Citrine, Walter. Letter (copy): Mr Manuel Marquez Sanchez.

MLA (8th ed.) Citation

Citrine, Walter. Letter (copy): Mr Manuel Marquez Sanchez.

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