Cita APA (7th ed.)

Gower, J. C., & Hand, D. J. (1996). Biplots. Chapmam and Hall.

Cita Chicago (17th ed.)

Gower, J. C., i David J. Hand. Biplots. Londres: Chapmam and Hall, 1996.

Cita MLA (9th ed.)

Gower, J. C., i David J. Hand. Biplots. Chapmam and Hall, 1996.