APA (7th ed.) Citation

(1899). Secret diplomatic history of the eighteenth century. Ed. by E. Marx Aveling. Sonnenschein.

Chicago Style (17th ed.) Citation

Secret Diplomatic History of the Eighteenth Century. Ed. by E. Marx Aveling. Sonnenschein, 1899.

MLA (8th ed.) Citation

Secret Diplomatic History of the Eighteenth Century. Ed. by E. Marx Aveling. Sonnenschein, 1899.