Mackay, J. H. Sturm (4.Aufl.). Karl Henckell.
Cita Chicago (17th ed.)Mackay, John Henry. Sturm. 4.Aufl. Zürich; Leipzig: Karl Henckell.
Cita MLA (8th ed.)Mackay, John Henry. Sturm. 4.Aufl. Karl Henckell.
Atenció: Aquestes cites poden no estar 100% correctes.