Cita APA (7th ed.)

Ash, M., & Ash, I. (1977). A formulary of cosmetic preparations. Chemical Pub.

Cita Chicago (17th ed.)

Ash, Michael, i Irene Ash. A Formulary of Cosmetic Preparations. New York: Chemical Pub, 1977.

Cita MLA (9th ed.)

Ash, Michael, i Irene Ash. A Formulary of Cosmetic Preparations. Chemical Pub, 1977.