Cita APA (7th ed.)
Cumming, A. C. The manufacture of hydrochloric acid and saltcake. Gurney and Jackson.
Cita Chicago (17th ed.)
Cumming, Alexander Charles. The Manufacture of Hydrochloric Acid and Saltcake. Londres, Inglaterra: Gurney and Jackson.
Cita MLA (9th ed.)
Cumming, Alexander Charles. The Manufacture of Hydrochloric Acid and Saltcake. Gurney and Jackson.
Atenció: Aquestes cites poden no estar 100% correctes.