Cita APA (7th ed.)

Powitt, A. H. (1986). Hair structure and chemistry simplified (Rev. ed.). Milady Pub. Corp.

Cita Chicago (17th ed.)

Powitt, A. H. Hair Structure and Chemistry Simplified. Rev. ed. New York: Milady Pub. Corp, 1986.

Cita MLA (9th ed.)

Powitt, A. H. Hair Structure and Chemistry Simplified. Rev. ed. Milady Pub. Corp, 1986.