Cita APA (7a ed.)

Ghilarducci, A., & Ahlers, M. (1980). . American Chemical Society.

Cita Chicago Style (17a ed.)

Ghilarducci, A., y M. Ahlers. . American Chemical Society, 1980.

Cita MLA (8a ed.)

Ghilarducci, A., y M. Ahlers. . American Chemical Society, 1980.