APA (7th ed.) Citation

Richard, E. Letter from E. Richard to Bouhéreau, La Rochelle, 30th July [no year].

Chicago Style (17th ed.) Citation

Richard, E. Letter from E. Richard to Bouhéreau, La Rochelle, 30th July [no Year].

MLA (9th ed.) Citation

Richard, E. Letter from E. Richard to Bouhéreau, La Rochelle, 30th July [no Year].

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