APA (7th ed.) Citation

(1864). T. 21 (1863-1864); Bulletin de la Societe Geologique de France. 1864.

Chicago Style (17th ed.) Citation

T. 21 (1863-1864); Bulletin De La Societe Geologique De France. 1864, 1864.

MLA (9th ed.) Citation

T. 21 (1863-1864); Bulletin De La Societe Geologique De France. 1864, 1864.

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