Cita APA (7th ed.)

Chen, P. S. (1950). Syntans and newer methods of tanning. The Chemical Elements.

Cita Chicago (17th ed.)

Chen, Philip Stanley. Syntans and Newer Methods of Tanning. South Lancaster, MA: The Chemical Elements, 1950.

Cita MLA (9th ed.)

Chen, Philip Stanley. Syntans and Newer Methods of Tanning. The Chemical Elements, 1950.