Cita APA (7th ed.)

Salmon, E. H. (1921). Columns: A treatise on the strength and design of compression members. II. Frowde and Hodder & Stoughton.

Cita Chicago (17th ed.)

Salmon, E. H. Columns: A Treatise on the Strength and Design of Compression Members. London: II. Frowde and Hodder & Stoughton, 1921.

Cita MLA (8th ed.)

Salmon, E. H. Columns: A Treatise on the Strength and Design of Compression Members. II. Frowde and Hodder & Stoughton, 1921.